Why?

That's easy, once u have a dog and train, luv n care tor it . A dog gives the same in return no questions asked...

Dogs offer unconditional love..

Dogs are affectionate towards their owner.They are very smart and fun to teach tricks to.They watch over their owners.They are part of the family.I enjoy taking my dog out for a walk.My dog comforts me when I feel sad or depressed,he cheers me up.He can sense how I feel and seems to respond to my feelings.

Dogs are very loyal to their owner compared with any other pets. In short, they return back the love which you give them. Sometimes they are not treated just as pets but also a part of the family coz they have feelings too :D