TheChandler meeting targets is surely a key expectation in just about any job now? I work in the third sector and performance targets are a key part of the role as is the understanding that contracts and continued employment depend on them.
In law, you usually bill per 6 minute units of time and have to meet fee targets. Therefore, unless you are a designated trainer, which I have never actually come across, if you put down too much time as training, you won't meet those targets. Most departments have trainees and while one individual might have a special responsibility for a trainee, that trainee will still be expected, if not to be profitable at the beginning, certainly not to actively cause a loss of profits.
Trainees are interviewed and tested rigorously after a vocational degree, and if they are unable to carry out trainee tasks without constant questioning, interruption and guidance no-one minds a few relevant questions at the beginning) then they are unlikely to be up to the job, or alternatively are trying to make their mark by pretending to come up with something novel without the requisite experience (in other words, just wasting everyone's time). If a manager or senior employee can't see through the latter sort of employee, then that's a big problem.
I've never been sworn at. But certainly if you want to avoid intimidating characters, law (and many other fields) are not the place to be. Many of the best lawyers are seriously intimidating in the flesh, even in a social setting. Unless it causes claims against the firm under employment law arising out of genuine grievance, I cannot see a problem with that.
I would guess that in medicine and dentistry it works a different way again