Here in Berlin for example, in the first week of september my 85 year old grandparents received a booster shot invite letter from the Berlin senate. It said something like starting 20th september you can get the 3rd shot from any doctor or you can go without an appointment to a vaccination centre across the city.

what did they do? nothing because case numbers were low, I did push and push to finally get my grandpa to get is 3rd shot mid november while go to the doctor for something else... by coincident the rush to get the booster started 1 day after that.

I bet this happened a lot.... As far as I know just like for the 1st shot sverybody above 70 got that same letter. Meaning they had more than 2 months head start to get the boostershot.

So at least in Berlin I wont have sympathy anymore for taking away the shot from somebody else (got my appointment in january)