Um gun retards like you like think any gun control laws are unconstitutional yet you will support laws that bar 5 year olds from purchasing a gun. That’s the point. The first amendment applies to ALL Americans yet common sense law prevents kids from buying guns. According to your logic about limiting the 2nd amendment, it SHOULD be legal for kids to own guns.
The courts have ruled that children do have some rights, but not all. It's based on their age and what particular right is in question.
A child cannot tell his government teacher to F-off and then expect the constitution to protect him or her. The child is not allowed to vote. A child is not constitutionally protected by the Equal Protection law compared to an adult. They are protected by Equal Protection in cases that involve all children. A child cannot pursue a lawsuit because they can't drink alcohol but adults can.
Therefore, no, a child does not have a constitutional right to buy and own a firearm.