I have found that regular cast acrylic is easily scratched. There is a mar-resistant acrylic that is much more resistant, HOWEVER, it doesn't cut very well with a V bit. Too gummy. I tried using a diamond drag tool on some, and it works like a charm.
Acrylite MR2 is the material.
Here is one source:https://www.acrylite-shop.com/US/us/mar-resistant-mr-h45to9h3n6r/acrylite-optical-mar-resistant-colorless-0a000-mr2-gi323cm7ndd~p.html
Good judgement comes from experience.
Experience comes from bad judgement.