It’s still advisable to encourage the younger ones to follow their passion, because even you would not be there when they begin to experience withdrawal from a role they don’t like.
If anything, adults like us should teach them how to maximize whatever career path they choose.
But in the case of ignorance and people not knowing how to help, it would be wise to just find a similar course that’s lucrative, using it as a leverage to the career one is passionate about.