Why does it matter? I met my wife when I was 20 and she was 23. Does it matter what happened when she or I did at age 16, given there are no STDs or children

Why does it matter? I met my wife when I was 20 and she was 23. Does it matter what happened when she or I did at age 16, given there are no STDs or children in the mix? I know I don't particularly like to be judged on things I did before I was 19 or so, because the me at 18 was a very different individual (less responsible, more petty, etc.) than the me at 20. So, turning the question around: are you seriously going to judge a person based on what he/she did a number of years prior?