Why Do People Need Dog Walkers?

Personally i dont use one.

But i could see the need, i just quit my job and so i have plenty of time to spend with Sprite and take quite long walks each day, however if was workign then itd be much harder, my girlfriend finishes work at 17:30 most days and i would be working the same hours which means the earliest we could go for a walk would be 1800 or before work at around 0600

So for working couples/singles there might be a need to get your dog walked by someone because you are not able to yourself.

Which then begs the question, why get a puppy if you cant spend time with it?