Kids keep getting hurt and killed on e-bikes.

As traumatic injuries and deaths continue to surge among the youngest e-bike riders, officials across the country are taking different paths to tackle a growing epidemic

NEW YORK -- As traumatic injuries and deaths surge among children involved in crashes on e-bikes and other electrified vehicles, one California prosecutor is cracking down by pursuing criminal charges against some of the young riders' parents.

It is just one way officials across the country are trying to tackle the growing issue, while families navigate a patchwork of local laws and guidance on what kind of souped-up cycles and scooters are safe or even legal for their kids to ride.

New York City’s mayor recently sent cease-and-desist notices to dozens of online retailers for selling products marketed as “e-bikes” that aren’t street legal after a 17-year-old died in a crash on an illicit vehicle. In neighboring New Jersey, new regulations require e-bike riders to be at least 15 and obtain a license and vehicle registration.

But do the measures hit the mark? Cycling advocates worry regulations might be too broad — demonizing low-powered e-bikes instead of speedier motos — while some parents question whether localized, piecemeal strategies are enough.

Monica Stafford, a San Francisco-area mother whose teen daughter fractured her skull falling off an e-bike, said officials are “missing the mark” if they’re seeking to lay the blame solely on parents. The San Rafael resident said a unified, national set of rules is needed.

“We’re in a total Wild West of laws,” Stafford said. “Being for common sense laws doesn’t mean that you’re against e-bikes, just like you can be for cars but not think that it’s safe to put keys in the hands of a 10-year-old.”

The two-wheeled machines have become nearly ubiquitous in recent years, from packs of teens zipping around California beach towns to the army of delivery drivers dodging traffic on the congested streets of Manhattan.

Hospital visits for injuries from e-bike, e-scooter and other motorized rides have, as expected, soared as they have grown in popularity, study after study has shown. But researchers stress that the more concerning trends are the severity of the injuries and the fact that they’re especially pronounced among children.

“The big takeaway is that people are generally more severely injured than they would be if they were on a traditional, pedal bicycle,” said Dr. John Austin, a doctor at the University of California San Diego School of Medicine who led a recently published statewide study . “Overall, these patients tend to be younger, they tend to be unhelmeted and, in turn, be more severely injured.”

Most e-bikes are classified as nonmotorized vehicles akin to traditional bicycles under federal law, meaning riders don’t need a license, insurance or to even wear a helmet. Most states, though, have enacted additional requirements for higher powered machines, including minimum age and helmet requirements.

In New York City, the death of 17-year-old just steps from City Hall has spurred renewed debate about the bikes.