Waited until I was 45 to have a kid. This was divine intervention or fate, not really choice. Until then it was Dual Income No Kids (DINK) and invested early. I was a soldier and wife was a teacher. It wasn't like we were a lawyer and a doctor.
We didn't divorce and she doesn't spend money.
I had a windfall during a deployment back in 2007. There are no taxes taken while overseas, you really don't spend any money, and they had this "guaranteed 10% investment" thing where they take like $1000 out per month. All of that to say, I got out and bought Microsoft at around $27 per share. But then we kept saving and investing. TSP, Roth IRA, IRA, brokerage accounts, etc.
We never spent extravagantly, her 4Runner is 10 years old and my truck is 15 years old.
Then one day in the Army I said, fuck this (its a longer story), but essentially 3 years ago we sold all of our stuff, bought a catamaran and said, YOLO bitches.
I have a tiny bit of VA disability income but the bulk is stock dividends that keep us from destroying our savings. I haven't touched any retirement accounts.
But if you ever want to buy the most expensive depreciating asset in the world : BUY A BOAT!