I skipped the graduation ceremonies for my BA and my first master’s degree. For my second, apparently the cost of a cap, gown and hood was included in the tuition so I have academic regalia sitting in a box somewhere should I ever find myself in need of such, a scenario I cannot imagine ever coming to pass.
I just did online school and didn't bother showing up to any kind of ceremony. I was 30 when I finally finished school, I didn't really feel the need to prove anything.