Different federal states have already made use of 75% (Mecklenburg) to 95% (Thuringia) of the doses delivered to them, with most states being in the range of 83-87%. A part of the remaining doses is reserved for second shots and the remaining unused doses really must be because of inefficiences of some sort. Claiming that the speed of roll-out is slow when most federal states have already used more than 6 out of 7 doses that were delivered to them so far is surprising.
Fair point: I'm wasn't seeking to differentiate between vaccine supply and operational efficiency. Ultimately, the end user has little insight into where the issue lies - but thanks for the dashboard link that clarifies this.
So let's be more specific: the slow roll-out of vaccination in Germany seems to be related to failures in vaccine procurement and supply at a national and/or EU level. And this is why frail elderly people are still waiting... when less at-risk people in the UK have already been vaccinated.
https://impfdashboard.de