What risk? Is it your money? What would be truly dreadful is if you were risking your parents money, especially if it was raised with the expectation you would be able to repay it once you have a job flying. I have two sons and and daughter and given the condition of the market today, I wouldn't lend any of them money to go flying. I'd help them with a degree or a vocational course, but not flying. The conditions for the new joiners in most airlines are dreadful, verging on the criminal. I'll not encourage my kids to camp in their car at an airport car park and eat beans for every meal for a couple of years.
Get an A-Level, yes. Get a degree - but only if it is useful (ignore Meeja Studies and other such bunkum) and then think about flying with an older head on your shoulders. Go gliding. Maybe even a get a PPL but don't go flying for a living until the terms and conditions change for the better for the new joiners.