Is this a good idea for trying to keep friends together?

k so I just got an idea. My highschool group of friends over the last two years has really seperated due to university and stuff. And everyone has different friends now. I still get together with small groups of them or just individuals once in awhile, my bestest friends regularly. But I was just thinking.. what if I planned a day every month where I would go to the same restaurant everyday and I would go there no matter what. and I would extend the invitation to all of them. Let them know ahead of time, it would be like a monthly get together. If I told them about it do you think they would think thats stupid cuz some of them have moved on? I think secretly everyone wants to stay in touch with their old friends but maybe thats just me.