I remember when i was young i really loved my "bi bi" shoes when i was learning to walk, it maked me want to keep walking.... but my uncles say it was bad for my ears and took away my shoes..... i was so upset... this is one of my deepest memories of my child hood, i think it's ok for them to wear in the park or out doors, there are so many things that people say are bad for babies that we used to have when we were younger. But i will definalty get it my baby when he is learning to walk!