Chance, it is amazing how many people get excited over someone's criminal background whether they have "paid their debt" or not.
Here in the USA, we have about 5% of the world's population BUT we have 25% (some studies say 50%) of the world's prisoners. This frightening statistic should be an eye opener to everyone using such a metric to disqualify. There are some former felons that should be eyed with caution, but by and large most should not.
I have penpals in prisons and the ones I write should NEVER have seen the inside as they were railroaded by the judicial systems.
Those people that have not been to jail or prison yet, will soon find themselves in one or the other. It is only a matter of time, not IF.
Eg: If you have multiple traffic tickets (misdemeanor) for the same thing like speeding over a certain time frame, it is possible that you could find yourself coming under the "3 strikes" which could change those misdemeanors into a felony as a habitual offender. Just depends on the prosecutor and judge.
btw... studies have shown that someone in jail / prison for 18 months develops PTSD, which creates health problems for when they are released.