"Just make sure you can afford it easily, but that applies to any activity you get into. The bulk of the moaning and whinging that goes on in GA is caused by people trying to hang in there when they cannot - and never could - afford it."
I am not sure that is true either. I would suggest that people who get in to flying, do so knowing the costs. The problems come when costs start to become disproportionate. Over the last few years costs have risen due to extra bureaucracy and a sharp rise in fuel costs. There is of course the "must have gear and gizmos" that much of the bureuacracy is pushing us all to have.
Inflation is still increasing over and above pay increases,which in real terms means less money to spend on a hobby.
I am fortunate enough to have looked into the costs and cut my cloth appropriately. That's not to say that in a couple of years time I won't be able to afford to fly, but as I do more of the seat of the pants than IFR I reckon I can just about manage.
The last thing I want is to see flying taken away from people who fly for fun and reserved only for those with loads of cash.