Not being a developer, but having had lot's of great moments with them, I can say, that in my tangenital environment there are lots and lots of school taught me

Not being a developer, but having had lot's of great moments with them, I can say, that in my tangenital environment there are lots and lots of school taught mediocre to bad PHP devs, that always find jobs, but on a very low pay grade (and rightly so). So maybe there are lots of mediocre php devs pulling the average down?