I'm going to play explicit music for kids
That seems inappropriate. Why do you want to do that?
It may harden them for the world when they head into it.
It's understandable to want to prepare children for the real world, but its wrong to subject them to inappropriate material because you deem it necessary. They may not be able to properly comprehend the material and it could end up harming them.
I care for the well being of children. I am teaching them what the world is like.
It makes sense to prepare children for the world, but I don't think playing them explicit music is the best way to go about doing that. Their parents probably wouldn't be happy about it. I'm sure there are better ways to educate them.