In American marriages and maybe this is a general Anglosphere cultural tradition you’re expected to provide and sacrifice if need be for your family (including spouse/kids). So if you had a hobby of, idk, drag racing cars it might be expected you give that up in some marriages, though certainly not all. Also if you have a child your hobby can wind up leaving your spouse with sole child responsibilities which typically falls on the mother. So you wind up with a father who works and then does their hobby, and you end up with a mom that also works and their hobby becomes raising a child. This can cut both ways or course.

I think I was listening to a world-famous rock climber who had toned down their extreme sports adventures (toned down for them) because they didn’t want to die and leave their spouse and child without a father over the pursuit of a hobby. So it’s a maturity thing too.