A juvenile who shoplifts commits the same offense as an adult who shoplifts, but the matter will be handled much differently. Minors charged with crimes go to juvenile court, not adult criminal court.
Criminal mischief has likely been around for as long as people have owned personal property. Any time a person damages someone else's property without the owner's permission, that's criminal mischief.
While all states have laws that govern physical attacks against children, such as battery or homicide, many others also have laws that specifically address child abuse.
State prohibitions against underage drinking extend further than merely the sale of alcohol. It's also illegal to furnish, supply, provide, or give alcohol to a minor.
When most people think about crime, it's violent crimes that quickly come to mind. You don't have to know a lot about the law to know that violent crimes are the most serious criminal offenses possible.