How are boys and girls treated different?

Talking in broad terms of little boys and little girls. Not men and women. Aggressiveness, roughness, hardworking, most technical sports such as Basketball, football, etc. usually different treatment. Now, little girls you want delicate, kindness, sweet, dearing and sports such as volleyball, cross country, and much more. Now, te present day there really isn't a difference in the treatment just depends on the way they're raised.