Depends on people I guess. My gf isnt wealthy so I don't have this scenario. But as I've always been, ive never wanted to do stuff like this, it makes me look bad and in a way "owe" them. and I hate debt of any sort.
I never liked the idea of someone "paying my bills for me", I look to do whatever I can as much as I can without aid. I guess my logic is based on jungle law, where we're all responsible for ourselves. While I will help others, having others take pity on me is unacceptable. Taking aid is like accepting weakness. Maybe my personality is broken, and I'm fucked up to some who reads this, but its just how I've been. Parents kind of raised me in a way to reflect this.
Last thing I need is to accept help from someone esp. a father in law, and have them exploit me over it. Eg. "why you not supporting me in this moment (or discussion)? You ungrateful fuck, forgot I gave you xyz?"
I guess really it comes down to not wanting someone to put me in a position where I'm to be exploited, my gf's family think differently. An ex as well, the ex's fam, there was a time where a neighbor of theirs basically offered to pay their electrical bill because the guy was a nosy busy body. I wouldn't do that, had a similar case, where a friend's mom basically tried to do that (force a pay and made it look like a gift) at the end I "thanked" them for their goodwill, and gave them back the money on the spot for what they did the next day. I'm not for sale, and never will be. Especially for some rich shit who thinks they can use me as a bargaining piece with a small amount of value like a servant boy.