bad words?? And How?

And is it in that persons control? How?

At what age do teens think it's ok to block out little kids?

When do teens start to judge people easily just by their face?

they grow older?

Is it by how the people on entertainment act?

their little brother (sister)?

We really change feelings with friends?

What we change with our feelings with family or friends?

When us gets older what we well think about parents?

physically, socially,and mental?

hating the family?

the most?

Can we change the public by our thinkings?

Not like the different "ways" we change

but how it works when we change.

If so, why?

parents more angry?

the most?

in a certain way, could we?

How?

After this change, young adults cannot understand facial expressions or tones of voice...in a way they are like babies trying to understand the world all over again. They think people are being mean when they are not and because of this confusion they get frustrated with adults very easily.

As a parent it can feel like their child does not love them or understand them any more...it is not true. With love and patience all teenagers become nice people again, the same as babies become nice children.

Teens think it is ok to block little kids out when they start hanging out with their friends. They feel like they have more to talk about with their friends and the kids are just getting in the way. (which is wrong)

This one does not just relate to teens. Everybody acts like a judge whether you mean to or not. It happens mostly when people start to dress nice and look nice. They see more imperfections in other people when trying to make themselves look better.

As we get older we do think about our old friends. I think about my old friends sometimes. It is sad that my old friends and I are not currently friends, but I understand that people change and do not always have the same things in common anymore, and I am happy with the friends I have now, so it worked out!

This one is a big one for me. I am ALWAYS on my phone (I know it's a terrible thing.) There are really interesting things on the internet and we have the internet at our fingertips now. There are things that grab ahold of our attention like Facebook or Instagram. I feel that phones are really getting in the way or spending time with families.

Because teens are on their way from being children to becoming adults, I think they try to act like adults to reassure themselves that they are developing in the right direction. Blocking little kids and hanging out with their friends probably makes them feel more grown up, even thought that may not actually be the case.  

I would also guess that it's built into our biology to seek independence from our parents during our teen years. Otherwise, we'd have many more single adults that continue to live with their parents into middle age -- not a very pretty sight, and definitely not good for the long term survival of human kind. Unless we are willing to leave our parents (if not physically, to a certain extent emotionally) to start our own families, there wouldn't be many kids, and after a while there will be no more humans.  

On your third question:

As Stephanie mentions, this is not just a teen thing. Child, teen, adult -- we all do it at some level. I think this is also built in biologically and is something we have at a very primitive level. For better or for worse, the way someone / something looks can be a good indicator of whether they are safe or dangerous, and in many cases it's probably best that we pay attention to our instincts -- for example if you are confronted by a growling wolf with sharp teeth, you can judge from the way that it looks that it's most probably dangerous and best that you get out of that situation as quickly as you can. The same instincts guide what we feel based on how someone / something looks. However, as moral beings, I believe we humans have the obligation to overcome such instincts and to condition ourselves to not "judge books by their covers." Not always easy, and is part of growing up -- that's probably why we see this kind of behaviors more in teenagers than in older adults.