explicit tiktok videos

Hello, I know my opinion is invalid but I wanted say, lol. 

I think that these explicit videos from tiktok are very weird and wrong, specially that kids watch tiktok. Last time I saw my brother seeing a video of a woman with just bikini showing her backside to the camera. Obviously my brother is a kid, so he didn’t knew it was wrong him see it. But I took his phone and changed the video and told him that these kind of videos are wrong and he didn’t needed to see it. I think it’s very wrong bc some videos are to help people and tiktok ban them/they and their videos, but when it’s for that kind of video tiktok doesn’t ban it. Just my opinion, be good you all!