Using some other feature than education as a signal would subject employers to claims of discrimination, so they're not going to do it unless we drastically change our anti-discrimination laws.
I'm sure they already do use, e.g. work experience as a signal.
Previous thread
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one.
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.