Barriers, or rather confirmations of commitment
Apart from the loan repayments on an instructor's "wage" from 2 to 28 hours per fortnight *smile*? Just the power hungry individuals who permeate flying schools; the personality type that belongs in a private boys school, and instructs just to have an opportunity to yell at and otherwise assert a dubious authority over a student. Don't get me wrong, it's all worth putting up with just to go for a fly