[bcrosby95]

jQuery has existed for a long time, still gets updates, is still used in greenfield projects, and has a large body of expertise around it.

The concern is abandoned projects that no one knows how to use, not that something is a bit old. React is beyond that point. It's not just the tech junkies hopping from the latest fad using it. There's been enough widespread adoption that there will still be React projects in 20 years.