My sister got pregnant and now my parents want me to stay with my grandparents in a different state, I don't want to aitah?

My sister is 17 and he recently found she was pregnant. My parents plan on helping her raise the baby but we have limited space. My grandparents who are nice but also very old and live in a different state suggested I stay with them that way my sister's baby can have a separate room or whatever.

Our parents plan to help raise the baby so my sister can finish school and go to university. Academically she is fairly smart but outside of that yeah.

I start HS next year, so my parents and grandparents think it would be an easier transition for me. My friends are here I really don't want to go through the HS experience with no one I know.

My family thinks I am being stubborn and unsupportive. My uncle told me I am not thinking about this objectively. He told me facts are having a new born can be rough and not easy. He claims my parents are trying to spare me. I get that, but why do I have to move across the country because my sister got pregnant?