No, the things they say mean they don't understand it. "Doesn't that hurt your feet?" is a question that no one who understands barefoot running would ask.
Also, I don't care about what they say. If you don't have a thick skin and the capacity to shake off random comments from strangers, you won't do something unusual that attracts that kind of attention for > 10 years
Also, I don't care about what they say. If you don't have a thick skin and the capacity to shake off random comments from strangers, you won't do something unusual that attracts that kind of attention for > 10 years