[user104658]

This is very complicated because the idea is that the crash occurred because they were being followed and they would otherwise have been riding around carefully and the crash wouldn't have happened, rather than that they were being followed by police because they were already riding around thrillseeking/dangerously and an accident happening was already a high risk ...

As tragic as it is for young people to lose their lives like this, I think the latter seems probable, and they weren't out collecting groceries for elderly people on the scooter.

IMO the message needs to be clear; these kids lost their lives because they were joyriding around in a dangerous manner and their lives were at risk the moment they stepped onto the e-scooter with the intention of using it like a fairground ride. Because kids are currently doing that up and down the country, and more are going to be hurt/killed. The idea that "they would have been fine if the police had just left them to it!" is really worrying and dangerous. It might prompt hesitance in officers to stop other kids they see doing the same thing and turn a blind eye, which will result in more accidents, not fewer.