I am not in position to talk about him but my take is:
Prophet didn't became prophet due to his patient .. you mean anyone whom do the same from childhood to 40s Allah would begin communicating to them via Angel Gabriel and Allah would reward thier patience by appointing them as prophet? no he was chosen and purified (& his household) from any sin as God stated in his book.
Prophet's are infallible in conveying the message and from errors/sins. That being said, don't make mistake of thinking they are ordinary people who were just 'chosen' to deliver a message. No, like they are very different than ordinary people and lived differently, on purpose, before they were tasked with their prophethood. And so they struggled for God, and God eventually appointed them for matters. They are not fictional characters with superior mental prowess to everyone. Once you believe in that, then you believe in a fictional cult story. Prophet's had the hardest lives before Prophethood and this is confirmed in Hadith(at least Sunni ahadeeth but maybe Shia too). The next after them are 'Saliheen' or the next best, and that is what category the Mahdi falls in, so he is not infallible in our view in the sense he can't sin(especially before God makes him a Caliph among people). During his rule he probably won't make many mistakes, however, and by mistakes we mean that his decisions for Islam/Muslims/society will most likely always be the right to approach.
So it ain't about his patient though he was a human like all of us but God "will" was to appoint him as prophet and therefore raised him and put difficulties in his way first to make his character and also as Quran says as pattern to be followed ... Mahdi again has been chosen and will be "masoom" otherwise he can't follow and continue his fathers path .. generally as I said the only way is resistance which what prophet did in the first years of his prophethood ... be it in Sheib Abu Talib or in siege in Medina .. the point is if you believe in your way then you should pay the cost and that means resistance.
Like I said my friend, nobody is born the way you think. This is why in the Quran, Allah talks about how he 'guided' Prophet Mohammed numerous times. And how he led him to the 'Hudaa', it's a long process. So yeah he was infallible, but it took him to fully develop the rightly guided character, probably around adulthood. Now how Allah(SWT) guides them to this, is through tribulations and Allah knows best how he achieves this.
Prophet Mohammed is an example for us to follow, but we are really following the way Allah(SWT) ordains upon us. He led Prophet Mohammed to the 'right ways', to the fullest extent, which is why we follow him. In our time, the Mahdi will be the guy led to the right ways(by God) to the fullest extent, which is why God will make him a leader among the people.
Mohammed Askari doesn't exist, even according to some Shia source. But, I know you believe that, but you should know better than the story propagated amongst you. It is said he will come back to restore rights to Ahl Albayt. First of all, this suggest that Islam is less about worship of one God(Tawheed which was main focus in beginning of call to Islam) and more about being a religion of exclusivity to one family. Why would God make the focus of his religion upon exclusivity sort of like the Jews who believe their linage only is chosen and should be an example to non-Jews and what not. This should be enough for you to realize that narrative is wrong. Let alone that he is supposedly alive for almost 1400 years.
Secondly, Muslims were not meant to have perfect, rightly guided leaders forever. Why you believe that should be the case doesn't make sense to me. Like I said before, that is very fictional along with your notion certain people are born perfect and chosen. Allah(SWT) knows the future and everything that will happen, doesn't mean he helped the rightly guided by giving them superior capabilities. He did not, they cling to the truth more than others and are more willing to be patient against the consequences. In other words, they earn their status, which they might not even know and die in that state only to find out on judgement day that were among the 'Saliheen'. Mahdi may or may not know his status, but he will know the night Allah does grant him some qualities(he is exception because of last era of Islam) to help him face the struggle of leading at that time. But, for sure, he will not be infallible prior to that, in sense he will commit minor sins. That does not affect him being rightly guided, he will be rightly guided to a big extent, and might just be missing a little.
Prophet calls him in Arabic 'Rajl Saalih', not infallible. And also means the man is 'good' but in Islamic sense this is a big thing and not just 'good' like people think of it today. So I guarantee you will be wrong, and if it happens soon I want to see your reaction/perspective on this forum. Are you going to follow him or are you going to wait for the fictional, no problems, super handsome, super muscular guy that he supposedly will be? [/quote]
Sorry I responded in hurry so it's too short ...
That's fine, we don't have to debate these issues.
Ps: Ahl Albayt are not perfect people, there are millions today. And majority of them are Sunni. So coming from such linage will really not do you anything, it's up to you live the right way, and once you take first steps, God will guide. Just having linage will not help on judgement day. Is it nice to have such linage? First what is meant by that, because we all know many people today claim to be from the Prophet's linage because it is more special in their eyes, and it might reap them some societal benefits. That's not the right way to take pride in such linage. And actually there is no need to take pride, ideally.