I used to think this was ridiculous, but I also do it now, and I tip the guy nicely for his efforts.

Just because we think it is wrong, these guys thrive off the tip money as Tallg said. This is a whole different society with a completely different set of mores. As you may have noticed, queuing is a relatively new thing here in some parts, whereas back home if a persons just stands somewhere for no apparent reason you will find a line up a mile long.

If the guys dont like to do it, they just dont come out of the shops, simple. I have a KFC beside my house that actually has a sign for Car Hop Service.