In the UK you have to do a Basic Safety Train
In the UK you have to do a basic safety training before your even allowed to get on a bike with L Plates. They teach you to drive in the middle of the lane not at the side. That is because when you drive at the side of the lane, cars will continually try to squeeze past increasing the risk of what happened here. So a long way to go for Thailand to get safety on to the roads. Thais can ride bikes, but safely, no.