Is it ok if your fingers touch other keys when playing piano?
When I practice scales, and I do it slowly, sometimes a finger or two will rub against an adjacent key. It’s not enough to sound the note, but it bothers me because I probably have OCD or something. It usually happens during cross-overs and tucks. Is this okay?
No, you are not being OCD at all — it is a technique that you need to work on to hit the notes more “cleanly.”