I have two children. A daughter who just turned six and a son who just turned three. My daughter was late to walk. My husband and I were pretty worried about why it was taking so long for her to stop ‘bum scooching’ — her preferred method of movement. I consulted Google on more than one occasion to see if other parents had children doing the same. I felt anxious when I read that 18 months was considered very late. She didn’t start until she was 22 months after a few months of physiotherapy.