I honestly can't imagine my dad saying 'ill pay your bills for you' and me, an adult with a good income, actually letting him, whether he had money or not.
That's absolutely fine, you do you.
Just because someone offers doesn't mean you should take them up on it.
That's true. It also doesn't mean I shouldn't take them up on it.
Because you're a grown woman and your dad shouldn't be there just to finance you for the rest of his life.
Who says a woman shouldn't do this and that? Who makes up the rules for women to live by? I'm not a feminist, but many of you seem to be. Isn't the whole point of feminism to let women make their own choices? Or are we, maybe, only allowed to make choices between a specific set of pre-approved choices? 
Don't you feel any shame that you are leeching off other people whilst keeping everything you earn to yourself?
No. On the contrary, when I read about a lot of the women on here that are expected to pay half of the pay bills equally with their higher earning husbands, who are the sole providers of their children and who financially compromise for their men's sake I feel really blessed that I'm free from all of that kind of struggle. I would be ashamed of myself if I was bratty and entitled about being looked after, or if I was accepting being looked after from people that don't have the means to do it. But I'm not, so I feel no shame.
I honestly could not do that without feeling guilty, I'm surprised that you don't.
Why are you surprised? We are two different people, we are bound to have different feelings and experiences, right? Just because something is foreign to you, doesn't mean it's foreign to somebody else, you know?
You sound incredibly selfish. It's not a trait to be proud of.
I'm not incredibly selfish, I'm a reasonable selfish person. And I think it's healthy to have a level of selfishness within you. It's not that I'm proud or not proud of being selfish. I just see it as a very normal thing to be in moderation.