If u were a shoddy registrar, best beliveve u're going to be a sloppy SR. If u were unkind, mean and lazy as a SR, you're not going to undergo an abracadabra kind of transition to a consultant with good work ethics
We all must try to do right. Be better mentors, be better teachers and care for ourselves holistically.
I'm sure this issue of hostility amongst the older/younger colleagues is not just in medicine. I know it plays out in a lot of other professions too.