Air filters are such an easy part to replace it’s insane.
Lots of things are so easy to fix or replace it’s insane, both in terms of car maintenance and other sorts of DIY. Folks are way too intimidated by simple repairs when they shouldn’t be.
I, for one, blame the relegation of classes like shop and home ec to the “technical” high schools that only the non-college-prep kids go to. They should’ve stayed part of the normal curriculum for everybody.
I’m broke so I always look things up before determining if I need to pay someone. I had a landlord say she was going to have to pay someone to put in the original showerhead because she didn’t know how when we moved out. I grabbed that thing and screwed it in in front of her. Like sure you may want to put some tape there for leakage but it wasn’t there when we moved in.
