Whats the worse that could happen
Well, let's see... you could instruct for a while, maybe get some multi time, happen to be in the right place at the right time and get a job flying a little turboprop such as a Jetstream, get noticed by an airline and become a First Officer, progress through to a command, become a trainer as a result of your instructing experience, and retire rich and happy.
(shudder) awful fate...!!!
The point is, an instructing career will almost certainly result in poverty. Not necessarily... but probably.
Of course, if you never try...