Toddlers With Potty Mouths

I think it's hilarious to hear kids swear. Is there something wrong with me?  This is a video I saw on my Facebook newsfeed this morning. It's from Buzfeed.

Keep in mind, these kids are swearing...and they're pretty good at it. Some of this might be NSFW. Especially the first kid. He sounds like he just realized something after admiring his baby sibling.