Recently I heard my colleagues talking about choosing a “major” for the teenage kids, which is a fairly serious business. https://btv-gz.dreamhosters.com/?p=9865 has many examples. Choosing something you enjoy could mean hardship and a lower living standard than your classmates or childhood friends.
What if I’m really good at whistle music, but then even the world’s top 10 performers don’t make enough money from this trade alone? It is great fun and joy, but such a profession will be hard to sustain.