No, you're just being delusional man. I'm a 29 year old, married two years, kid on the way. I'm successful (bay area software engineer, TC $320k no larp). I'm pretty good looking, blonde, and /fit/.
I do not even know where I would encounter 18 or 19 year olds at this stage of my life. I would have to deliberately go hang out on college campuses and audit classes. Already have a master's degree so I have no reason to be there, and I don't have the time for it with my career.
It would be...extremely difficult for me to seek out 18-20 year old girls. We're just not in the same stage of life, and they're not even old enough to be at the bars (as if I even want to be at the bars -- which I don't). I guess you could filter for age on a dating app, but girls that age are not looking for marriage at all and are on those apps to ride the cock carousel. I'm just not in the same walk of life of a ditzy college girl. Not to mention, my family would be pretty weirded out by me dating someone over 10 years younger than me and (more notably) in such a different stage of life.
If you're a celebrity that's 35 and just got your hit movie, and you're constantly exposed to groomed Hollywood 19 year olds, it makes sense to marry young and it would be logistically reasonable (Derek Jeter and Leo DiCaprio lived this life for years). However, if you're just a normal 35 year old dude? That's been out of college for 13 years and is working a corporate job? You're just not involved with girls that young in your day to day life at all, so seeking them out would be pretty difficult, AND all the girls that age are just getting into the party days and aren't looking to settle at all.
Again, it's a 4chan pipedream. It's not a smart idea to wait until 35 to look to start a family.