My dream job is to become a commercial pilot. But I'm not going to take that route because becoming a pilot is one of the most risky jobs out there. I'm thinking of simply getting my Private Pilots License and buy myself a general aviation aircraft (I.e. Cessna 172) which I can fly for pleasure. I've already had 3 flying lessons, don't regret any of them!
You should join it. Being in the air force will guarantee you a spot in an airline once you leave. Go for it! It is a much cheaper and safer way than doing civil.