I like this idea.

My first 'career job' came from an interview invite generated from a referral from a friend. I was an on and off college student not sure what to do with myself. I figured I would do the interview as practice for when it counted later in life.

So I just was myself and winged it... got a job offer the next day.

I tried that for an SRE position at Google. You can get through the first couple interviews, but if you don't study the exact material they give you--and they'll give you a lot--and aren't able to recite it exactly as described, you get turned away pretty quickly.

They feed you all this nonsense about wanting to see creative solutions in the interviews, but if you study the material they give you, all the answers are there. It might as well be a certification.

"You did well initially but didn't study the material we gave you. Re-apply in 1.5 years." No thanks; I was just keeping my options open and don't have time for all that nonsense. If you have a decent offer, tell me; otherwise, stop wasting my time. And, of course, what happens 1.5 years later? They call and email you incessantly asking you to re-apply.