I'd never paid too much attention to child seats since we don't have children ourselves, but JJ's comment yesterday prompted me to take a closer look.
In the parking lot behind our building, there seemed to be mostly 2 types of seats.
One is the metal caged seat that sits on the rear rack.
This one is in its basic state.
This one has cushions and a head rest.
This brown one has a slightly different cage design.
This has patterned fabric and a Hello Kitty bell for the child.
The other popular one is the handlebar integrated basket/seat.
This one has a handle bar lockout dial on the back.
This one even has a wind shield!
This bike has both seats. Until recently, it was actually illegal to carry more than 1 child on a bike, but the law changed so that specifically designed bikes are permitted to carry 2 children. I don't think this is one of them, but I don't think the law is enforced too much, at least not in this part of Kawasaki.
They really seem to change the look of the bike. If I was designing a bike with these seats, I think I would want to paint them to match the bike. Maybe painting it all blue like the Pereira Oregon Manifest bike would be cool.
The seat in the top picture was one in its intended use. That's yet another design as well.
It's cool to see that so many people use the bicycle for all kinds of everyday transportation needs.