Hi dear friends, I'm waiting for your helpful comments. Thanks!
Some people may think that pets must be treated like family members but I disagree with this idea because they are only short living animals which have not thinking capability like human and can bring various illnesses to the other family members.
First, nearly all of the pets do not live more than ten years. Treating with the pets like family members needs loving them as much as a family member and at this situation death of the pets after some years will bring stress and grief to the other family members.
Second, pets do not have thinking ability and learning capability like family members. For example you can teach to your son how to eat, how to treat with others and how to wash himself or herself but things that you can teach to your pet are very limited and very laborious. Moreover, pets cannot act regarding to the situation because they have not thinking ability; so, I think training of pets is very difficult and I have not enough time to do that. In addition I cannot accept the risk of accepting pets like family members because they have not thinking ability and can bring many troubles to the other family members.
Third, from the medical aspect, there are many illnesses that can spread from pets to the human like various types of leaches. For example one of my friends died from an unknown illness from his dog. I do not want to have the same fate!
In conclusion, treating with pets like family members can be acceptable by many families but I think it is not a good idea.