People should wear what they want, but in certain places I don't feel comfortable seeing people in full body suits where anything can be concealed. Airports for example, I'm a nervous flyer as it is without people causing me more stress.
A solution to this could be more tighter inspection of women wearing a niqab or a burqa. As long as the inspection is done in a private room and by a woman.
btw, i don't know if you have these extreme cases in Europe, but some of them here also wear gloves over here
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