Were there any advantages or disadvantages to being a knocker-upper?

There were both advantages and disadvantages to being a knocker-upper. On one hand, it was a steady source of income and provided job security. Additionally, it allowed for a flexible work schedule. However, there were also downsides such as having to work early hours in all weather conditions and the physical strain of constantly knocking on people's doors. It also required a good memory and punctuality.