One of my DC went to GA, the rest of them all went state in East Ren.
I don’t regret sending her there as she had a good experience but I probably wouldn’t do it again as I don’t think it was worth the money in comparison.
Exam results in her peer group were much of a muchness with my other kid’s year groups.
There were more music and sports opportunities but she wasn’t particularly interested in either, she played hockey for fun but could easily have done that to the same standard in our local club.
The downsides were she doesn’t have the same local friends/belonging as the others and a lot of time was spent travelling to/from school.
I don’t know how valid this is now but at that time GA, HSoG & Hutchy were the more academic schools with St Al’s more classics/sports oriented.
Kelvinside didn’t have a great academic reputation, again I don’t know if that’s changed, they churned out Athletics/Rugby stars by the dozen though.
Your parents have made a really generous offer, personally though unless you feel your child won’t succeed at a good state school or needs extra support then I’d ask them to invest it to help with getting your child on the property ladder when they’re older.
Really the gap between good states and privates setting Glasgow really isn’t that high and it’s nowhere near as much of an advantage as it was in the past (thankfully).