Not a safe assumption. I'm married with 3 kids.
If your partner doesn't share your priorities, then you've got a problem. You certainly are going to find it hard if you want to retire early and she wants to keep spending money.
In an extreme situation it could end up in divorce. Mind you working long hours for a long time also isn't great for your marriage. Another vote from me that getting divorced isn't a great financial move.
Perhaps to be more precise you should hang out with people who have similar consumption levels. They could be as wealthy as you, or wealthier, or poorer. But if you hang out with people who
spend a lot more money than you, you'll be unhappy (or you might not be, but your wife will).
Theres some interesting research around this. Even if you know that you're actually wealthier, even if the other guys has zero net worth because he's spending his entire paycheque, its difficult to be happy when the other guy has a nice car and you don't.
I think there is some truth in that. I certainly didn't look for early retirement. I really enjoyed my job. It was office politics and management BS that made me leave. It just happened that by that point I had enough to stop. Now I do the stuff I enjoyed, but not the other stuff. Don't have to deal with idiots eithier (or at least on ET one can press ignore and not have to listen to them).
I guess if I had just been doing it for the money I would have wanted to do something completely different now, not even vaguely finance related. Another guy who retired last year, he just rides bikes now. That would bore me.