Vogue-
Admittedly, a 19 year old should / must be treated as an adult. Would it be too personal to ask you what your mother does that you consider being treated like a baby. I know that answering this question puts you at risk of being judged for your perspective. As a former 19 year old child of my parents, & the current parent of similarly aged children, I think it would be helpful to hear that perspective from you.