No.
Not in the U.S.
Yes, provided they have appropriate supervision.
They can under adult supervision. This is the age to learn respect for, and how to handle a firearm.
Without Adult Supervision anything is possible. Is it worth the chance. BB guns are NOT toys.
If charged as an adult, 1-5 years.
Under the supervision of a knowledgeable adult it would be OKAY.
It's up to your parents. But in most placed you must be 18 to purchase one.
11 to play at fields, 18 to buy a paintball gun.
ask another eleven year old.
Seeing as the minimum age of 11 is required to play at fields, any 11 year old will not be experienced, and probably not mature. Besides this, the legal age to buy paintball equipment is 18, so unless the 11 year old convinces a parent or guardian to buy one for them, they are out of options.
of course!