Yvette’s one of the very few girls who can get away with wearing pants because of Mark’s protection. Most of the girls who work for Solomon wear pants because when they get to a certain age, he ships them off to the Rose unless they’re able to find work elsewhere. He doesn’t have that many girls working for him, but he’s greedy enough not to care about gender so long as they bring him money. Truth is, without Mark’s protection, she would have been shipped off to the Rose long ago.