Whenever my local transit authority strikes, various people make a point of pointing out how much money MERE BUS DRIVERS make, especially if you include the management-pushed line about total compensation (you know, salary plus all benefits. It's a lot of money because medical insurance costs a lot of money. And they're just bus drivers! They don't even have college degrees!)
Personally I can't imagine driving a bus through narrow Philly streets dealing with the occasional but regular "interesting" bus riders and of course the various bad drivers and illegal stoppers/parkers that make the job hell without losing my shit. And, ultimately, that's what it takes to be a good bus driver. Someone who can drive a bus full time without losing their shit.
In any case, they're hiring! They're always hiring bus drivers, at least every time I check. If this truly is your dream job, go for it!
