Literally everything in IT runs on decades old principles and technologies. The world simply refuses to fix things because "if ain't broken, don't fix it" philosophy. Look at TCP, HTML, JSON, SMTP..all good tech but insanely old and outdated and overtaxed for that it was invented for. When people joke that the entire banking industry runs on excel sheets, they are really not far from truth. Things will be shitty until they completely break down and people are forced to fix them. Look at JavaScript, this horribly stinking steaming pile of green diarrhea that rules over the entire front-end is still being worked on and developed and billions of money and countless work-hours have been wasted in order to make it somewhat usable, instead of just coming up with entirely new tech suitable for the 21st century. This is the entire internet and tech in general.