How to deal with classical guitar nails and piano playing?
IME you can play classical guitar without nails. I was often complemented on my tone when I was studying (shame about the fluency, speed etc!) When I cut my nails off I was able to get a sound that was as good to my ears if slightly different. Your right hand fingers get a bit of a callus, in the same way your left hand fingers have. When I was studying, this guy was quoted as playing without nails, because he’s a lutenist. Tone sounds pretty good to me.