Up until I was 10-12 I wanted to be a confectioner/pastry cook. I don't really recommend it now.
Then I went to high school (maths+some IT), that was good, I liked it and I was really good at maths and especially chemistry. Every time my physics teacher asked what uni will we attend, I always said chemistry and he always replied "I don't believe that / I don't believe you".
University was like this: Faculty of Economics and Business Administration, first 2 years general stuff, then last 2 years of finance & banking specialization (other choices for the last 2 years were marketing, economic informatics (is the wording right??)). Then followed one more year of master's studies: Corporate Finance.
Always made my own decisions, but some advice would have been welcome. Currently I can wipe my bee-hind with my diplomas, only opportunities in the finance sector are: info desk/teller/selling insurance at banks = no thank you, you can keep your small commissions; or the Business Process Outsourcing sector, which has equally low wages as the former I mentioned, plus killer work hours.
So: I do recommend the IT sector, engineering, and the likes. Do give some advice to the kids, not everybody can be or should be a singer, a ballerina, join the army/police, etc.
In my view the majority of youngsters these days are not realistic. Getting their heads out of the clouds would be welcome.