Perf and a11y aren't the same thing. It's fine to teach a child how to cook macaroni and cheese. The perf "baseline" as it is practiced today (and evangelized by Google) makes "learning to code" a near-impossible task.
To be concrete, I think browsers could be more overt about the fact that frameworks are likely the solution to this problem, and come clean about the fact that a vanilla.js + perf training world is unlikely to result in the fast web we all want.
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I don't see it as one-sided. It's imo important, and OK to teach developers about a perf budget. I'd prefer not to teach them about the browser's hidden classes. I definitely think frameworks and libraries are part of the solution.
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I think it's ok to teach devs the concept of TTI but if end devs are trying to hit frame budgets directly we probably already failed. I've met many good devs who don't even know how to use `debugger`
End of conversation
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