I don't want to pay rent to my mom when I'm 23
Why don't you want to pay rent?
That's a service I will pay for my mom when I'm living at her house. It's not like I also live there.
It is okay to not pay rent now but if you plan on living there in the future, it is good to pay your share of the rent. You don't want to be a user.
Do not call me a user. I do not live there. Are you even listening to me?
I can understand your feelings. It's understandable to be upset if a child doesn't pay their share. If you want to live there it would be nice to offer to help pay some money for the bills.