At first when i saw statues with consort i was in shocked too, then later on when i heard the explanation of someone who has great dharma knowledge, i accept his explanation and start to embrace...
Well as for kid, if possible, i wouldn't let them see the statues, it's not asking them to avoid seeing things like that. I just want to avoid them think negatively towards Buddhism if they have the wrong perception and they are not nurtured or explained well why those deities need consort? To kids, one female and one male Buddha in that awkward position, normally would lead ignorant people's mind go wild, and eventually misunderstand the purpose and meaning behind it.