Cross-country skiing is cheap and affordable for nearly anyone. All you need is a pair of used skis, a pair of boots, and the ability to bum a ride from a friend.
Well it's a bougie hobby if you fly every year with your private school to Switzerland, and get a new set of skis (deliberately exaggerating of course, it can be various levels of bougie). Cross-country is definitely cheaper (no ski pass, skis are generally cheaper) but there are plenty of places where affordable ski slopes are nearby and it's normal for someone working in (for example) a pub to own a set of skis, and be able to head out with some friends for a day of skiing
Downhill skiing is the bourgie hobby.