@Getafuckinggripman. Hmm yes, where to start! I love it, and have a background which means I know about dogs and modern training methods. Some things to consider:
The responsibility- you are dealing with people's precious pets. It's a huge responsibility, especially as each has a mind and personality all of their own. The responsibility weighs heavily for me- I love all the dogs I walk and take their welfare very seriously.
Insurance
Vehicle (needs to safely transport dogs in separate crates, be air conditioned etc)
Weather: you need to be able to be out for most of the day in all weathers. There aren't that many jobs that continue in freezing cold or driving rain- but dogs need to be walked regardless. The only time I dont walk is when it's very hot (garden visits only). Winter can be brutal.
Training: you need a good understanding of dogs including their body language, exercise needs and limitations, a solid understanding of training techniques etc.
Groups: I walk solos and small groups of up to 4. Walking a group of dogs takes experience. They need to be matched and managed carefully. All need to be happy, and play needs to be calm and safe. It is easy to walk large numbers of dogs together and let them be unruly- this is a recipe for disaster.
Solos: solos often tend to have some behavioural challenges. This can be fulfilling work, but also needs skill, and can be physically and mentally challenging eg a strong reactive dog.
Boundaries: too many people employ a dog walker when they need a trainer or a behaviouralist. You have to be careful to know what you can and can't take on, and be confident enough to say no where required.
I could go on and on. It's a fantastic job. But not as easy as some people think.