If there was a "minimum age", I'd guess at least 30 now, but some people will most likely get a divorce no matter what age they are just due to the person they've become.
Currently I'm in Oklahoma for work, staying at a hotel on business. The person I was 25 years ago if I were married? Forget it, I'd probably get myself into trouble. Not now though because I realize what I had and what I now have. That comes from living life, and thankfully I wasn't married when I made those mistakes.
Take Matilde's beau going out on a bachelor party. Experience tells me that going out drinking with boys and ending up at a strip club only increases the chances that you may do something stupid, so I would never do it. I speak from experience LMAO (even tonight, grown men that I do business with will go out "bar hopping" even though they are married...experience tells me nothing good can come of it).
For the record, only married once, happily, going on 12 years.
Today's couples face a lot more pressures than in the past.
Yes, people can get married and stay married, but the statistics make that a longer shot say compared to 30 years ago (due to various variables that have changed in the "social climate" IMO).
The only thing Fred cab do is support his son due to his love, and I would do the same thing.
That said, I give the same advice to my boys my father gave me... Live life, travel the world, don't be afraid of women, but when your ready to settle down, make it only one time. My mother didn't marry until she was in her early 30's and had a career. She gave up that career for me and stayed married for over 40 years until she died. She gave me the same advice my father gave me ( except for marrying a woman better than me, which I did as well lol )
I could never understand as a young man why my mother would let my father stay in France when he was single and they dated "off and on", particularly after seeing the 8 mm film my father took of all the women over there, but now older, I completely understand.