Unrelated to what? You don’t know how old the kid is in the picture, how long they work, nor what time of year it is.

For one, we have no idea if it’s completely unrelated. We don’t know any of the context here just from the picture. This could very well be a summer job. We don’t know.

Also, nonce is a really weird insult. Are you meaning to call them an idiot, or a pedo? If the former, sure, but if the latter, that’s really weird.