In the same boat as ya... I'm 30, and only have weekends for lessons with a 9-5 job. Taken me just under a year to get to RPL, so I would imagine I would be around 32/33 before I can get CPL done!
While a career change would be the ultimate goal, I just love doing this too much to be thinking about what happens after CPL. Its a bit hard now for fresh CPL pilots as many would say, but no one knows what will happen the next few years.
If you love it, just do it!
Who knows where it will take you, and there's more to flying than shiny jets with the big airlines (as cool as that may be!)
