Sorry maybe I didn't word that too well.
You are not too old to start learning to fly in your 30's and 40's, or too old for employment.
Unless, you are being viewed through the eyes of the majority of Airlines.
I can't see what they have to lose by employing older Pilots?
Do you really think the passengers care about the crews age?
Imagine :
"OMG, Why was that 45 year old F/O, allowed to pefrom the emergency landing that brought us all back safely? I wanted someone much younger than that
"