Im not 100% set on commercial flying per-se. I would fly for a cargo liner given the opportunity. It's hard to say why it is I want to fly commercially. I've always done the Flight Sim thing and gotten such a thrill out of commercial aviation.
I would even do business jets. I know the career field is shaky at best and pay is substandard for the regionals... but i can't imagine myself doing anything else when Im older. I would ALMOST fly for free. I would feel like im settling if I did another job besides piloting. And I know the life style is crazy. Crazy schedule and hours... but its part of the ride. And I am willing to embrace that. But i will check out "leaving the career" for sure.