Parents who do this (especially the fathers), please take a bow. You have earned it. Unless you do this:
That's a child seat for a motorcycle. The description says all that needs saying (emphasis mine):
Child seat suitable for most scooters in circulation. Is fixed to the saddle through universal adjustable straps. No belt is provided subject to the child to keep the seat as they can be dangerous in case of fall.
I got my kids out skiing, I got them out boating, we did all sorts of outdoors activities. But Boy Howdy, this seems like an astonishingly bad idea. Leave your kid behind when you're out on your sweet Midlife Crisis ride ...