It's really easy to just deny the problem, especially when it's not your problem.
So you have good eye sight, can tell red and green apart and you can rage click without any pain in your wrists.
It's not your problem, so it's not a problem. Denial is easy and even tempting.
But you're not your customers.
Your customers are incredibly diverse. About 1 in 5 people worldwide live with some form of disability. That's over 1.5 billion potential customers you might be excluding.
Let's break it down.
3.5% of the population (approximately 246 million people) have some form of low vision. Not blindness. Just people who struggle with small text or low contrast.
Colour blindness? You're excluding about 4.5% of the world's population. Approximately 8% of men and about 0.5% of women are affected. That's about 350 million people worldwide who might not be able to tell if that checkout button is red or green. Think about that next time you're designing error messages.
And motor issues? About 10% of people live with some form of arthritis in their hands. That's millions of potential users who might struggle with precise mouse movements or complex gesture controls. Carpal tunnel syndrome affects up to 6% of adults. That's a lot of people who might be in pain trying to navigate your website.
So when you say "it's not my problem," you're really saying "I don't care about 20% of my potential users." That's one hell of a business decision to make, isn't it?
Side note.
You have good eye sight, for now. You have no pain in your wrists, for now. Talk to me when you're older and start needing prescription glasses and an ergonomic mouse and keyboard to get through your day.