First things first, become a lineman, learn the trade, put your time in, then if you have the wherewithal and intestinal fortitude to deal with all the know nothings you'll-be working for weigh your options on the money difference.
Seen too many kids top out and talked into supervisors position when they weren't good JLs yet. Seen one guy quite recently top out and jump the fence within months, 6 months later he has a nervous breakdown and is in a corner playing in his own shit.
moral of the story, learn the trade and put your time in before you consider taking that step.