Is it safe to play Nintendo Switch on a buses to Everett?

Is it safe to play Nintendo Switch on buses ?

I want to know about how well security is maintained on buses in Seattle.

We are planning to go to Everett, for Boeing tour for a summer vacation and need to take buses from the downtown and it will be a two hour ride.

My son is 10 years old and wants to play Nintendo Switch on buses. Would it be safe? Would he be a target for pickpockets. Need advice!