Ego and inertia. You don’t have to trust me, but there’s a very serious blog post about common ux myths https://clay.global/blog/ux-guide/ux-myths that shows how ‘best practices’ become dogma. Example: Carousels. Studies show they’re ignored, yet clients demand them. I A/B tested one—90% of users saw only the first slide. Now I push static hero sections. Data > tradition. That’s the only way to improve, yes.