Can People Outgrow Stupid?

Having something of a long day today.... nothing major, just 'one of those days'.

Ever notice that unintelligent people never become smarter? Is stupidity something you can never outgrow? When I was a much younger fellow, I used to be a bed wetter; but I outgrew bed wetting with time and effort (i.e. limiting water consumption before bed). Some people are physically unfit, but then decide to change that and after much effort and discipline they do become fit.

I suppose if you want to 'improve' something about yourself, you first need to identify your shortcoming; and sadly, most stupid people likely don't realise they are.