I don't think clothing is bad in it's selfon itself, it's more the intent behind the clothing. Right now it's pretty cold in my house, and my 15 lb yorkie(6.8 kg) Yorkshire Terrier mix has a sweater on, because he has pretty short hair.
I do enjoy dressing him, he's adorable, but I am clear that he's a dog, not a baby, or nor a child, but a dog. he needs walks, he needs to roughhouse with his larger brothers, who by the way don't have sweaters on. he'sHe's a dog!