I may be misremembering some of the details of this, but I lived in a small village growing up and one of the families in the village was known for their collection of vintage bicycles, including penny farthings / boneshakers etc. I think the dad was occasionally on TV and stuff showing them off. But we did a similar thing to you, he bought them into school and I got to sit on it while he pushed it across the playground. His younger daughter also babysat for me and my brothers once, but she was really quiet and boring so she didn’t come back.