So who uses them?

I have when they were supplied.

How often?

When I eat chinese and they're what's given to me.

How long have you used them?

Years.

What are your thoughts on people that do use them?

Wow, that person's doing something normal!!!
Unless the person was using chopsticks to eat a burrito or lasagna or something, in which case I'd wonder why aforementioned person was doing so.

Maybe things are different in Australia, but a lot of people I know can and will use chopsticks for Chinese food if that's what the food is served with. It's not really all that difficult to pick up.