If anyone has lived in S E Asia, there is a completely different way of thinking. People just ignore road rules. Everyone just tries to get in first. Motorcycle riders will go across intersections, and not even turn their heads left or right. People will pull out from side roads and driveways, and not even look to see if any traffic is coming. Large numbers of people run red traffic lights. It is very common for people to run others off the road when overtaking.

If a local is going along, and see someone approaching an intersection, or coming out from a side road, they know they are not going to look, so they sound the horn. It is up to you to warn others, because they don't look.

When riding a bicycle in S E Asia, the same thing applies. If you don't use a horn, expect people to pull out in front of you.

As a result of this, traffic is very slow. Because people do a lot of stupid things on the road, everybody needs to drive slowly.

There are also a stupid amount of people killed in road accidents. The proportion of people killed in road accidents is much higher than in countries where people obey road rules.

People who have not lived in S E Asia, will probably have a difficult time understanding. You can get a better idea by watching Youtube videos of motorcycle accidents in S E Asia.