Earlier quoted context omitted.
Completing high school is one of those things that isn't a big deal for some people who are already on a good track, are broadly intelligent. But I'm going to guess the overwhelming majority of people who think it isn't for them actually need it quite a bit. I also think for self motivated intellectual kids, completing high school anyways really isn't much of a roadblock or time waster.
Some people have a learning style that is not compatible with public high school. This is true for both me and my kids. All of us had problems in school and were evaluated to see if we had learning disabilities. We all tested above the 98 percentile and were in AT/GATE programs. Also, we all tested out of high school via the CHSPE. For me, it was a choice that I have never regretted (except for not going to the prom)…
So, sure, you can get hired as a web developer, or even some non-web development roles, but that's kinda pointless because if you could stand doing boring shit you'd finish the academia to at least a very basic level.
TL;DR: If you couldn't stand the uniformity of school, then the roles available to you without a formal education are going to be just as boring and unrewarding to you anyway.