Via @aardrian@toot.cafe:

…consider tools like GitHub Copilot, which claims to be “your AI pair programmer”. These work by leaning on the code of thousands and thousands of projects to build its code auto-complete features.

When you copy broken patterns you get broken patterns. And I assure you, GitHub, Google, Apple, Facebook, Amazon, stacks of libraries and frameworks, piles of projects, and so on, are rife with accessibility barriers.