For some reason, I thought she liked to garden? Maybe at the time that picture was taken (I don't know when it was, but it was before the dress underwent the sleeve modifications discussed above), it was summer and she'd been doing something outside with gloves on.
Was there a "danger" of Harry or his brother or cousins being raised on a different continent, though? Those guys had a royal upbringing, but Archie's going to be running around in the forest with Bigfoot. (I'm not saying that the queen is going to seize the baby or that people aren't racist, but that doesn't seem to me to be the relevant difference in the situations mentioned.)