I am in a similar position i.e. more mature than others, but about halfway through the training. Sometimes I feel like giving it up with all the doom and gloom you read on here amongst other things.
But at the end of the day it keeps eating away at you inside and you can't wait to get in the saddle again and start flying and studying harder than ever.
Thats what I think, yes it would be easier to give up but I know it would eat away at me til I had gone the whole hog. Anyone whatever the age will probably feel the same. So my advice to anyone is just do it, don't really matter if you get a job at the end of it, because it is addictive and it will eat into you even more if you do jack it all in!!!!!!!