One big problem is that a lot of the popular books written about physics (especially those by famous physicists) are incredibly speculative and tend to present an unrealistic view of what the study of physics is all about.
This is irritatingly common in economics also though with economics it's less often speculation and more often simplification to the point that it becomes misleading.
e.g. "black holes suck in matter around them". Many pop science physics books will make black holes sound unique in the way they are able to attract matter which misleads readers as it is just gravity being applied to a massive object.