Dressed right

As Muslims seem to dress pretty similar to a strict Christian dress code such as the Puritans, I've seen a handful of people dress in long sleeve clothes and long pants in the heat, including this Christian (it's easy to tell). Most Muslims also wear long sleeve clothes and long pants in the heat, and several people, especially men, wear brown wicker shoes with casual pants, particularly matching blue clothes (with the unmatching shoes) or brown pants to match the shoes. I was pushing the norms making sure I'm not the only one who dresses like this, it didn't work because I have to change in my brown pants to wear the shoes since no one wears brown wicker shoes with track suit pants or black pants, it's either brown or blue. So I'm considering buying blue sneakers to go with track pants, which I've seen another wear (which are all blue clothes), but a slight difference in clothes doesn't matter, most people dress very differently. Is any of this normal?