Of course Maude, if you want to get started on your career and get as high up in a company as possible then it can be far better to start from an early age... Just think, if John Monks (BA Head of flight deck recruitment) had not finished his training at 19 he quite possible would not be in his current position now. Another major plus is that there is so much more you can get involved in within aviation once you have been at a company for a few years (instructing, recruiting, ops etc), so to say that you won't have as much fun, in my opinion, is not entirely true. Sure in many cases that is possible, but many pilots do other things on the side within the company and had they not joined at a young age they potentially would not be in the position to do so.