I started my career doing web development using PHP and mySQL. Then pivoted to something completely different for about 6-7 years as I got sick of spending all my time making stuff work in IE6. I heard it the whole nosql thing, didn't understand it but thought it sounded silly. Then came back to web dev 5 years ago and found postgres was all the hype and nobody talked about nosql any more. Glad I skipped it!