You can guess my approximate age by knowing that my high school GPA was around 3.5 and that was considered pretty good, but not near valedictorian level.
However, in the 2010s you can get a 3.5 just for attendance so you can tell I'm older.
I'm so old that the highest grade point I could earn in a class was 4 points, I guess now a days an A+ in a AP class gets you 6 points now or something like that in modern high schools.
1) No one cares what the recruiters think. If you mean interviewer that might be different.
2) My GPA was worse than that, and it was only 5 years after the fact, when Google totally-ignored-my-GPA. Anecdote stalemate.
... I might add ", bitch!"
Nearly every employer in the UK asks for your degree class.
It's not a practice I like, but it's something everyone will have to face. The older you get, the more people want to know about your past (which is rarely as good as it should have been).