Why don't we capitalize gypsy?

You can if it is at the start of a sentence but there is no need if it is in the middle of a sentence as it'd look wrong, also because you only should capitalize Words that are a country, place names..Etc. So that is why we don't capitalize the Word "Gypsy" in a sentence, but you can do it when it is like this: Gypsy. By its self or at the front of a sentence. Well you don't "Have" to do it but it is recommended if you want to be good at Punctuation and Capitalization.