You can join Aikido from 4 years old and you can join Juniors from 10.
An 18 year old person is an adult so in all states they may sign a contract. So the answer to your question is none.
This is a difficult question to answer. A stop sign ticket that is a year old should show up. It may be that it is an honest error on their part.
Yes of cource
can a 9 year old girl sign up for bad girls club
Nobody knows the exact age of how old Ueshiba was when he "created" Aikido. The term "Aikido" became the official name of the art in 1942 but was called Aikibudo prior to that time. Ueshiba was said to have developed the art in between the 1920's and 30's. That would put his age in the 30's to 40's. He was a very devout student of martial arts and took his time developing Aikido.
They can sign it, but it is not legally enforceable.
no a seventeen year old can't sign them selves out
A 17 year old may enlist in the U.S. Military with consent of his or her legal guardian/s.
In the United States, a 17 year old needs parental consent, and the parent has to sign a contract for the minor.
Can only a mother sign for her 17 year old daughter to get married?
No. At 15 you cannot legally sign a contract.
yes, Cristiano ronaldo can sign a contract