Welcome scaredtospeak,
It's ok to move out when you're financially able to or you have other support. If your mum and dad are upset it's because their kids have all grown up.
You are not responsible to make your parents happy.
My daughter left home at 19 she's 22 now. We talk nearly everyday and I visit three times year.
She is happy and I am happy for her. She just grew up.
Kate xx