Not everyone's ears are the same. MKBHD famously does not use Airpods because he can't get them to stay in. I have tried jogging a couple times with Airpods Pro and they pop out every time.
EarPods/AirPods designs assume that you have certain genetic feature on ears called antitragus that hugs the stem with two opposing wings. I looked mine in the mirrors and one of the wings is basically missing altogether, making it not "anti"-ing. Tim Cook visibly has a pair of bulbous ones.
I kind of have different ethnic background than MKBHD, so, it kind of makes me wonder how that design got the shape it got and how it stayed that way.
