My nails are not getting less and less. Maybe your nails are naturally short and you can't see them when you keep them. I have known several piano learners since I was a child, but I haven't seen their nails change. Every time I cut to the limit, I leave no trace, even my hands hurt. I've never seen my nails shorten when I cut them. . . But the fingertips may change and become round. . Up to now, I don't think pointed fingers are suitable for playing the piano. Anyway, mine are round fingertips, and so are my friends. I haven't found a natural pointed finger to make a round finger, but I think there must be one. . Playing like this for several years = =