Frankly, it's either we agree to status quo and keep what we have now OR bleed each other until one nation dies.
No nation would ever agree to let people decide in these kinds of scenarios, be it India or Pakistan or any other country.
If Catalina can hold a referendum to be separate from Spain, there is nothing stopping Kashmir, UP, TN or Kerala from doing the same in India if allowed OR Punjab, Baluch and Your Kashmir at your side. All you need is few local leaders who can raise passion and temperature and see the break of a nation.
So, not going to happen.
The only feasible and practical solution to India & Pakistan is to close our eyes, agree to keep what we have and shake hands.
we are not getting your Kashmir and you are not getting ours.