I really subscribe to the idea of the kid helping on bills + a little extra and the parent saving as much as they financially can of that into an account and giving it to their kid as a moving away gift.
But yes, I think you are more talking about having the kid pay market price to live at home which is fucked.
https://www.smithsonianmag.com/smart-news/icelandic-translation-dracula-actually-different-book-180963346/