as long as you dont have ronald mcdonald shoes you are good on the professional thing. I am not a barefoot person myself but I do believe some of us are genetically predisposed to be comfortable do activities barefoot and I am not one of them. I prefer tennis shoes myself. Me and the barefoot thing are friends at all.

Minimalist footwear is beneficial.The ABMP group on Linkedin has posts on this started by Jesse Retherford.

I have the five toes and wore them quite a bit initially. I like the traction of the soles. Ultimately, I started to feel a little weird in them, along the lines of being unprofessional, but I mostly just felt goofy. They can get really stinky. I started handwashing them, putting them in the freezer to kill of the bacteria, using cornstarch. They are a lot of work.

I do have my own practice and only on rare occasion will I massage in my bare feet. I enjoy giving massage in bare feet. I believe it is beneficial in terms of being grounded. However, I have thought, in the back of my mind, that it looks a bit unprofessional. And often, although not always, the therapist that does massage bare footed will have stinky feet or a stinky rug.