In his theory of Cognitive development, Jean Piaget proposed that humans progress through four developmental stages: the sensorimotor, preoperational, concrete operational and formal operational period.
1) Heather White
2) 15
3) female
4)none
5)Idk just want points
6)None
7)eat healthy and exercise
Because they want to seem cool, fit in, especially at school. they think by being rude and giving no respect to anyone including parents mades them seem cool when its really not..
Like they said it's helped a lot with contacting people faster and if anything bad was to happen to anybody you can get someone to come help because you technology and phones to help with that too but it's helped in a lot of ways . Hope this helps ! :)