Every single person I know well has a double standard for something. Such as “I don’t need to improve my driving but everyone else sure does” or a “do as I say not as I do” rule, etc. Though certainly some more than other. This leads me to believe all people do it in some way.
Is it simply human nature?
Everyone will be a hypocrite eventually, it’s the ones that don’t care about hypocrisy that you want to stay away from.
some folks openly embrace it and see absolutely nothing wrong with it in themselves, because they are special.