I've got my toddler a toy kitchen for Xmas and was wondering whether we need to attach it to the wall for safety? The child in question is still very unsteady on her feet and may pull her self up on it and/or lean on it while playing. It's a wooden one from Little Dutch which feels fairly robust. Would it be heavy enough to hurt her if it falls down? DH is nervous about drilling through the all as there are wires and pipes near by so not sure if we need to do it.