Weird, I made this post yesterday but it seems to have vanished. Anyway, TL;DR -
Sure, it doesn't need to be me. It doesn't need to be the GM either. The question is who should make the characters, not who can make them.
Like yes, I am aware that pre-gen characters are possible and some people prefer them. That's fine. I still have a preference for making my own, and IDK why anyone would think "but the GM could make them" would change that preference.
Much like with clothing, I have higher standards for how well something "fits" if I'm going to be sticking with it for months than if it's just for one day.Let's take another angle at this: you and some others keep bringing up that pregenerated characters are fine for one-shots but not for campaigns. What are your practical reasons for that?
Also, there's less need for "hitting the ground running" in a longer campaign, so the cost/benefit ratio is worse.