Shota! Spice and all things nice!

I'll make this short because people on here have short attention spans...

Why are people against shota but read stuff with characters that are in still in high school (who could be minors too)? Are smaller dingalings and flaps more illegal than a bigger ones?
What's the reason? Who made the rule that shota and loli is bad, but 15 years olds fucking like rabbits in a maths class isn't? What is the purpose of life? Why?...