Almost all the infected in the UK are young gay men. But that's coincidence, because that's the community it happened to have arrived in.
There is zero evidence that monkey pox is transmitted by the body's sexual fluids. Zero.
There is ample evidence that it is spread by infected clothing and bedding, large respiratory droplets, and of course the pustule fluid.
You also may not show symptoms of infection for up to 21 days.
Now, set the homophobia aside and apply the known vectors of transmission to a school setting or a day care. Now think about the sorts of things that happen when the kid gets home.