With these being very divergent career fields, you really have to ask yourself what is the incentive/drive behind committing to either one - family history, etc? I saw your post in the salary thread. Def don't make a decision based on assumed earnings in aviation.
Personally, I'd rather dig ditches for a living than look in peoples' nasty mouths all day, but I'm sure there are some that think the same about transiting airports and sitting in a plane for decades.
At the end of the day, decisions are never final and you'll always be able shift trajectories in the future with more time, money, and effort.