@RiotDemon Tells you how little I know about nail decorating . When I was younger mine often had ground in grease and other crud from working on boats, etc. When working on boats I’d wash my hands with a green scrubby trying to get the stuff off my hands (only sort of worked) as usually we were out of the industrial strength shop hand cleaner stuff.
My kid (in junior high and high school) would use a tiny paint brush to actually make dots and other decorations on her nails as she would only use her money to buy dollar tree polish and didn’t want to spend her money (just mine ) on all the other things you can buy for nails. I’d spring for that stuff for her on special occasions, etc. but not doing so certainly improved her painting skills (she is also a good artist).
She’d do mine on occasion and then get upset with me that I didn’t protect them and they’d get chipped. As an 11th grader she tried to convince me once that she couldn’t have the chore of doing the dishes as it was wrecking her nail jobs (never mind she had picked that chore off the list of things that needed done to keep the house running). I suggested using the gloves we had in a drawer. She was not amused.