Which is you making expectations. You can say it doesnt as much as you wish, it's only dancing around the fact that in order for you to grace a family, friend or whoever with your presence you expect free things if they ask first can you spend time with them.
You, not I, but you said if someone invited you to a restaurant you would expect them to pay for the entire thing. This "how you expect things to go" are indeed your expectations. In your words, this "applies to business acquaintances, friends and family." You expect them to pay for your things if you bless them with your presence.
Also this has everything to do with the feelings and motivation of the other person as well. It frankly has to do with everyone bothering to show up. Don't preach to me about generosity like you did earlier, and in the same breath demand that whoever asks another do they want to hang out they also have to pay for everything. While also saying that's how you expect it should always go as if that's the moral thing to do. As if the attitude that you can only grace a person with your presence is if they provide you gifts.
Which is why I said, if a person deliberately offers to pay upfront for someone else's company that is certainly someone's prerogative that I'm not against. You do you. That said, I'd also call any family or friends or stranger who expects me to pay for their meal because they graced me with their presence to be not a person I want to be around. It tells me the only way they can grace me with their presence is if they can get something free out of me which says a lot where I stand to them.
If you want to play the generosity/rude card, I would find it much more rude to say no to me if you feel you need to be compensated to spend time with me. If feel you need compensation from me, just tell me no.
You do you, but let's be real here and spare me the generosity/moral obligation nonesense on expectations that someone provides you compensation for your time for the high crime of you gracing them with your presence to spend quality time together. Time that if it was that much of a bother that you expect (or your twist "how you want things to go") compensation, you could have just said, no.
If those are your expectations, you do you and I don't mean that in a malicious way.
Im not sure what the motives are behind replies like this, however, ai123 was speaking about pretty common social etiquette as I understand it.