You don't if you're an adult.
Yes, you can. Until the age of 18 it is the parents choice to change or not to change.
The permission of both parents is necessary unless the non-custodial parent has relinquished all rights.
No
He wants to back to earth
a computer job, eBay and the such
not unless they have their parents permission, but if you dont have their permission you can spell your name differently around friends and non official things. :)
Yes she can since she has their permission. Or if she has obtained an order of emancipation from the court. Just being pregnant does not change the requirements to move out.
Changing your last name is the easiest. No permission needed. Trust me. All you have to do is begin using the new last name everywhere. Including school, applications, doctor office fill out forms etc. The last name will change itself.
Only if she has permission from her parents. If she does it without permission from her parents, she really should wait until she is 18. She should at least try. She will change so much in the next couple of years and she doesn't want to do anything she'll regret.
You will have to fill out the name change petition within your state. Also, make sure you have the other biological parent's permission because they will need to agree to the change or present their case in court why they do not want the child's name to be changed.
In most states, yes. I went through this as a child, and my mom wanted to change my name. My dad would not agree. Check with the state laws regarding this.
You can move out only if you have permission from your parents. Otherwise, you will have to wait until you are an adult, pregnancy does not change that.