crawlers dark knees

mirra23

So, my in laws are getting upset over dark knees. DS has been crawling maybe 2months. I see it is a little darker but not Black like they keep saying. I have started putting some cream on his legs at night figuring it is just the skin toughening up. I assume it goes away after they are walking for awhile, but maybe I am wrong! My DH is Ecuadorian and it seems to be a big deal here in Ecuador. I don't remember any of my friends and family back home even talking about this. Any insight or advice would be super helpful!!!