I tell you what, if you want to become a 747 Pilot with i.e. Air France it could be a little late. But If you are happy flying GA or even are patient for getting the right job, go for it. Its just a question of demand, and if you can wait there will be a rising demand in the future. I'm 41 starting flying two years ago after almost a 10 year break from flying. But my previously job doesn't make me happy, so I have to give flying a try before getting retired.