In my area, it seems to be about $30-$60/hr - a 20 minute walk runs $10-$20 . You can pay a little less if you are OK with a group walk but the walker is still going to make better than $30 for each hour of work. Or you can walk your dog yourself (which doesn’t work for a lot of people) or pay for doggie day-care - which costs a lot more than $10-$20.
I don’t think kids are lazy - but I don’t see kids doing any of the things I did when I was too young to have an actual job. They don’t babysit, deliver newspapers, mow lawns, or shovel snow. I’m not sure if they don’t need money or if their parents don’t want them to do it - but once it wasn’t 12 year-olds offering to shovel snow , the rates went up to $30 or more an hour. And they get customers - plenty of them. Even though it’s an unskilled job that any ten year old can do.