Earlier quoted context omitted.
> but a lot of younger developers only ever really learned React and are stuck the IE6 era it was designed around Last release of IE6: 2008 Concerted campaign to make everybody stop using IE6: 2009 Microsoft joins that campaign: 2011 First release of React: 2013
It may be hard to remember now that we’ve had frequently-updated browsers for so long but not everyone updated promptly. That lead to a lot of now-vestigial frontend culture where developers would build around the oldest browser they couldn’t afford not to support. That colored a lot of low-level decisions about how events were implemented, false claims about virtual DOMs being fast or efficient, and especially the c…
That said, I was on a team that was still supporting IE6 around 2014. We had clients, mostly in China from what I heard, that were required to use it because internal tooling had developed around it and their IT teams wouldn't let them upgrade.