My niece moved in with me and my boyfriend last week and she will be living with us from now on so we're making one of the rooms into her bedroom. Yesterday we went to a store to choose a bed for her and she says she wants a double bed because it's bigger and more comfortable (which I understand fully and have no problem with) but the salesperson looked surprised and said it is not common for kids to have double beds. But I canĀ“t see a reason why she couldn't get one. What do you guys think? It is weird?