Entities (paintings,item frames, minecarts) are breakable in adventure mode

I'm currently building a custom map and tried whether I was able to break item frames or not. After switching to adventure mode and hitting the frame, the frame and the item dropped. This works for paintings as well, making players able to cheat.
I know that this is not really a bug but it is really annoying.
There are also a few things like rotating an item frame or opening a dispenser that shouldn't be possible in adventure mode, however, making the players unable to destroy the item frames is the most important thing in my opinion.