Completely unsupported by Apple. Doesn't get OS updates or security updates. No apps get updates for it anymore through the App Store.
Saying that using a 2010 computer when it's an Apple computer is actually one of the worst arguments you can make in this context. Virtually any other computer running any other OS is more supported.
Sure but the original point was that the hardware was "certainly not durable". Every one of my Mac laptops (except for the 12" 2012 MacBook which is my local emergency machine) since ~2010 is still in active use by family. There's nothing wrong with the hardwares.
My father has been doing embedded software development since the early 80s. Thankfully the only tech support messages I get are when I break things like their email.