It’s possible in a very rural area with mommy and daddy’s help, but it’s definitely not ‘finding happiness’.
Owning a house means being house poor, can’t buy what you want because all your money is spent maintaining your property. That’s stressful.
Getting married in your early 20s is also a recipe for disaster, you change too much in that time period and have no idea what you really want out of life. FOMO starts to hit as 30 approaches and both partners blame one another for trapping them in an isolated home with no money and the next 50 years looking exactly like the last 10 did.