Kinda related: in Japan, there're signs on escalators that tells you not to leave a step empty between you and the person in front of you during rush hours.
It's 4 different temples, there's literally English translation for each one and clear instructions on where they are. I can't imagine how this could possibly be confusing for anyone.
Not surprising, a girl probably won't mind riding the red scooter but there's no way you can convenience a boy to ride the pink one, so retailers are taking more of a risk (of it not selling) when stocking the pink version.