I’m in Vietnam right now, and let me tell you, trades people can definitely carry tools around on a bike. The huge loads they carry here are impressive.
And how many are doing this in a way that would be acceptable as traffic-safe in a western city? I’ve seen videos of people in SEA transporting goods in all kinds of highly unsafe manners. Full-size fridge on a normal bike? A ton of bricks in a small hand-cart? Haybales, three meters wide and four high, on a scooter? Quite normal down there, but I can’t see anyone doing this in a large western city.