Nah, this was super common when I was growing up. We all used to commute by motorcycle, even though we had a family car. We did wear helmets. I know it's still common all over the world. I'm laughing now, cause my mother was super protective when I was inside the house, but of course riding on a motorcycle with a cheap plastic helmet was no worry for her. We thankfully never had an accident.
The most I’ve seen was family of 7 on a motorbike in Cambodia. The pots and pans and plastic I’ve seen people wear in Saigon was always pretty nuts. With the big difference being they’re typically not going very fast.
That's nothing, add a sidecar and you can get those numbers up! In the Philippines, it's common to get three behind the driver, 2-3 inside the sidecar, 2-3 on top of the sidecar, and 1-2 hanging on to the side of the sidecar, with maybe 1-2 behind the sidecar: