I used to take Dez and, later, his sister, to play group on a bicycle tag-along before such things became mainstream (early 1980s). Peter Bird, who in those days was based near Brentwood, made it. It is still hanging in the garage.
I recall going to my usual Saturday hostelry on one occasion, to which I used to cycle mostly, and another regular, whom I didn't know particularly well, muscled in on our conversation about cycling, saying how he had seen "some idiot or other" (I can't remember the precise terminology but it was disparaging) with a three wheeled bike with a kid on the back.