Why are teens follow trends so mindlessly?

they try very hard to fit in to feel accepted. they're misinformed. I guess they are very much unconscious about what's really life like. They need to get to know themselves better, they need to take some time to get to know themselves, accept themselves, improve themselves, respect themselves, respect their own opinions, respect their bodies, all this in order to live a happy healthy life. People should give a dammm about others opinions in order to live a good life.