Washington state law requires cyclists obey the rules of the road when they ride on public streets, which includes riding on the right side of the road. This is a safety issue for both those on bicycles and cars.
Just because alcohol is served on Washington state ferries, that doesn’t mean people aren’t over-consuming on their ferry rides or that the state approves of driving while impared. But, B.C. ferries just say no.
Washington law addresses electric scooters or motorized foot scooters, but electric skateboards are undefined and unaddressed by state law when it comes to where they can ride and how they are classified.
Whatever the age, buddy buckling is not legal or safe. The safest practice is for each person in a car has to have their own seatbelt or appropriate child restraint system, and that they’re all used properly.
Right of way at a typical four-way intersection is pretty easy to understand. It gets tricky when you encounter a painted traffic island that creates an offset right-turn lane, or a channelized right turn lane.