I have felt for a while, that ability scores do not make sense if they're viewed like most of this board does.
If every character of given class is expected to have the same main ability score or constitution score at a given level, why is it a choice in the first place? If the class effectively dictates your ability scores, why are we pretending they're a choice, why are we pretending they represent individual variation? In such a paradigm they can't. It would be far more logical to get rid of ability scores then, and just have the classes provide the expected level appropriate bonuses.
It is not exactly what I would want, but it would be far more honest than pretending there is a choice and that they represent different characters being different, if in practice your class effectively dictates the score placement.
So seriously stop to think: what is the purpose of ability scores and what do they represent?