I'm not going to accept my younger sibling's hand-me-downs
Do you think your parents will have something to say about this?
I'm glad that my parents don't care about this as much as I do.
It's understandable to not want to use other peoples hand-me-downs. Sometimes you might want to buy new clothes instead of wearing donations.
She wants me to because I can't afford new clothes.
I think you should be able to dress the way you want. Have you tried getting a job to afford a new wardrobe?