I left for college when I was 18. I hated the school so I left and applied to one that I could commute to. I commuted and lived at home. I also met my wife in between schools. Shortly after starting the 2nd school, we planned our future and got the parents on board with our plans. Part of this was that her parents preferred that we did not live together before we married. I finally left home at age 27, after working at a "grown up" job for two years. She was 24, and had her own "grown up job".
We made the mistake of renting instead of buying a house, on about an acre of land. Flash forward 10 years and the landlords wanted to raise our rent, which would not have been a problem if they would have fixed the sewage spot that had been growing in the back yard for over 2 years. We were looking for a house to buy anyway, and just waiting for the right one. When I stood my ground on not paying the increased rent until the sewage problem was fixed, we were given 30 days notice. This was one week after my wife had a c-section with our youngest daughter.
We quickly found a house and started the purchase process. Our 30 days were up before we closed so for 2 months, exactly, Myself and our oldest daughter lived with my parents. She and the baby lived with her parents.
My kids will always have a home with me. I won't enable them, but if life becomes unfair, as it seems to do a lot, I'll be here for them.
My brother also left at 27. There is 10 years between us.