I work with a soil bacterium, Myxococcus xanthus. All of the safety procedures my lab employs are designed not to protect us from it but rather to protect it from, well, everything. We don’t wear gloves, we don’t use goggles, there’s no strict wash-your-hands-before-you-leave-the-lab policy, and most of us don’t wear lab coats.
There really isn’t a point to wearing a lab coat when you work in an environment where you are the most dangerous thing around. Maybe you’d want it on media-making day if you’re a bit clumsy or if you forgot that it was media-making day and accidentally wore nice clothes, but except for protecting you from agar spills, the coat doesn’t do much.