My boy refuse to brush his teeth with any toothpaste except for First Teeth. He complains that the rest is too 'hot' even the mildest Kodomo Strawberry flavour. I gave up and just let him brush with water. Is brushing with just water alright?

If your kid is older than 2, you need to let him use toothpaste that contains fluoride so to prevent tooth decay. You can try this Tom's brand which has strawberry flavor and made from natural ingredients for him to try. My both kids love the taste and smell.