What happens to a 16-year-old for doing 55 in 35?

It depends on the jurisdiction in which the offense occurs, as well as the specific circumstances of the case. In many jurisdictions, a 16-year-old who is caught driving 55 in a 35 zone would likely be charged with speeding, which is typically a traffic violation. The consequences of a speeding violation can vary, but may include fines, points on the driver's license, and/or a requirement to attend traffic school. In some cases, a 16-year-old driver may also be required to take a defensive driving course or have their license suspended. It's important to note that the specific consequences of a speeding violation can vary significantly from one jurisdiction to another, so it's important to consult with an attorney or refer to the relevant local laws and regulations for more detailed information.