Earlier quoted context omitted.
Some probably will. 99% of them don't even know what "Chromium" is. This doesn't have to be perfect.
Right now, they don't know. They're going to learn very quickly when they want to use some website and they can't. We agree it doesn't need to be 100% perfect. But it needs to be at least, like, 60% perfect, right? And unless you make it at least a bit hard to bypass, it will stop virtually no one.
Installing a new browser is already a bit hard for most people. I think you are a little skewed in your thinking being online on HN.
You also aren't thinking about age. Certainly 16 and 18 year old probably can get a new browser installed. But a 14 year old? 12 year old? 10 year old? That barrier is a lot higher the younger a kid is.