Hell no. Never wanted to go to one.
Go and meet a bunch of people that you didn't like enough 50 years ago to stay friends with...?

I agree - no thanks!
Apart from that it would be somewhat depressing to have memories of fit, vibrant, long-haired teenagers suddenly replaced by the current reality of fellow saggy, wrinkled, balding OAPs! We would no doubt end up doing a body count to see who hadn't got as far as this.
I would also find it depressing to discover how successful many of them have been compared to me. I used to beat them all in nearly every exam at school but then failed the big test - real life. I know that at least two of them went on to become doctors, one became a QC, there were several scientists, and so on...
Many years later I bumped into one of the classmates who had become a doctor. He told me how great it was that he had opted for medicine. He asked what I was doing... I told him that I was working as an unskilled labourer in a local factory. He thought that I was cracking a really funny joke - ha ha ha! No, seriously, what was I doing? It took me some time to convince him. He looked embarrassed, made his excuses, and went back over to his friends.
Multiply that twenty to thirty times? Naaah!