Why? I'm in my mid 40s and have a 1 yo. I'd trade the adventure and hedonism of my 20s and 30s for good knees, a good back, quicker recovery from sleep deprivation, etc...

Now, don't just mate with anyone, be smart, look at how their parents are doing, ascertain their fundamental personality. IMHO 4-6 hours of real conversation is enough to tell if you want to spend the rest of your life with a person. The real challenge is listening to and believing that quiet little voice in your head. Which is a challenge because sometimes that takes 30+ years to learn how to do.

Distractions, for me, more than just "background noise", are something that demands my attention. Those can be explicit (somebody coming into my office and talking to me), or implicit (I hear the kids fighting about something, my brain tells me to do something about it).

If I was a 20 year old and had people bothering me at home, I'd just get a membership at a coworking space, or work from the library.