I have a hard-time believing the average salary for web developers is $90k. I did a quick google and I'm seeing reputable sites reporting the average between $59k and $75k in the US. (links below)
That said I agree with your point, it's good to invest in your career especially since that low barrier of entry to general web development means there are always newcomers coming into the market to compete for those jobs.
Ya, I would agree with you on that. I almost grabbed the stats from 2019 but felt that they seemed to be more realistic/relevant from 2017
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