If you have the means to afford the training costs, or can get parents help and can afford to wait for a job at the end of it, then go for it. If you have to scrimp, save, live on the poverty line just to afford training/or keep your licences valid then stay well clear. It is a profession where you have to keep throwing money at it to get a job, you can not do it on the cheap if you want to fly a jet in this day in age, unless your one of the very lucky ones to get in BA but I'd treat that as a distant possibility rather than a option.