Bharwana bhai,
There are two problems:
1 - People have very little understanding of how to protect themselves.. an uncovered face is less dangerous than a handshake. But most people don't know.. it's lack of education and awareness.
2 - We do not have the means to get the results quickly..
Either a professional doctor has cleared this guy after looking at his test results, or he is still under observation.. If he is under observation, no one should be allowed to go near him, except professionals with appropriate safety measures.
In Pakistan, if God forbid, corona enters, it will be much harder to contain it due to lack of awareness and casual attitude.