Please consider that implementing accessibility during the design phase is infinitely easier than post implementation. Additionally, accessibility benefits everyone and we should always be advocating for it regardless.

Imagine if you can code screenless. Headaches in response to light? Not a problem. Avoiding screens at night to wind down for sleep? Solved. Eyesight deteriorating (a totally normal thing that comes with age)? No new tech or ecosystem to need to adapt to, everything is already there.