E-scooters come with built-in limiters, but ‘jailbreaking’ them — using software or hardware to remove factory-set speed-limiters — is a common practice. Websites such as YouTube and Facebook host how-to videos on jailbreaking e-scooters. SickKids says it has seen an increase in e-scooter injuries in recent years — and those who make these devices faster than is legal have not helped matters. “It is the combination of speed plus power that is resulting in what we are seeing in the emergency department, which are major injuries,” Rosenfield said. “We want parents to understand that these are not toys and they should not be buying them for their children.”