Haha don't take it to heart! They're probably just jealous!
When I was in elementary school my friends told me my hair wasn't shiny or silky at all and that I should straighten it.
They also told me it was too thick and that I would look better bald.
In middle school, my two best friends told me my hair was the ugliest out of all of them.
But hey, I got compliments too. And in the end, the compliments added up to be more than the insults.