Unsupervised working
I see no reason why a mechanic can't do work on their own without an LAE over their shoulder. It more depends on your trust as an LAE in them. A tyre change for example wouldn't need an LAE standing around if you've got an experienced Mech team doing it, but if it's a new guy or an apprentice it might be prudent obviously.
There is a safety aspect if someone doesn't have a clue what they are doing but that applies to LAEs too !!
Safe flying
Tech log