Eh, it's a matter of priorities. By "can afford" I'm sure the OP meant "it's even an option at all" not "it's so cheap it does not require any real tradeoffs"

What percentage of USA residents would you say have spent $7k to $12k or more on a car, when only $2k is necessary to get you around safely?

But yeah, it's expensive, and someone earning more can afford to do it if they're merely interested in it, as opposed to having to be obsessed enough to make major sacrifices to afford it

That said, I have a friend who _is_ a (graduate) student and flies. He bought a gyrocopter for a couple thousand dollars, uses some license class that required minimal/no training but limits the weight of the aircraft severely (ultralight or experimental or something like that, sorry, not sure) and has ultimately spent relatively quite little over time on the hobby. Where there's a will there's (often but admittedly not always!) a way, but that doesn't mean it's not a way requiring sacrifices and tradeoffs