I love dogs very much, I may get one in the future!
Having a dog is a lifetime commitment (the dog's lifetime). It's like taking care of a child that will never grow-up. You will always have to be there for her/him.
The daily toilet routine, bath and grooming, diet and exercises ... etc. In return, he/she will give you years of unpretentious loves and joys. I had a little
Shih Tzu for 14+ years (ie. about 98 human years old) who passed away in 2009. The last two years was really heartrending as she struggled with aging and her health
deteriorated rapidly.