Sure, if you constrain “average user” to America. If you go to other places like India, where people don’t have $500 lying around to drop on the latest notebook, you’ll find a lot of repurposed laptops that have several-year-old specs still finding active use. Machines with 2 GB RAM and 250 GB spinning rust are not as uncommon as you might think.
And sure, if you just run one app and that’s it, you might get away with acceptable performance. But now try to install it over slow or metered Internet. Try to run it alongside Chrome/Discord/Eclipse/Spotify/Android Studio. Try to install all those apps without chewing up your disk space. These aren’t hypothetical scenarios, these are very real usability concerns.