In this movie based on the Australian child prodigy David Helfgott, the young musician has a breakdown and spends years in a mental institution after tackling the Rach 3. So many things can drive you mad as a child, not only music. This particular case was a very extreme situation. But it's not just musicians, it's tennis players, everybody.
Any gifted child can potentially get in real trouble because of the way they are handled.
I always say an unusual talent is an abnormality because kids don't have talents like that, not your average child. You're open for great dangers. You've got so many things that can go wrong. No. 1, parents. For every child prodigy that you know about, at least 50 potential ones have burned out before you even heard about them.