A robot mother is a very interesting device. She can do everything. For example to cook,to wash the dishes,do the washing up,clean everything,check up homework and she never wants to sleep. But she will not love us like real mum.
A robot dog can be different:big or small,colorfull or noisy. Children can not feed up this toys. They can turn on or turn off robot dogs in different time. But such devices are only robots and they don't teach us be kind and careful. Real mum and dog are better than robots