I think it would be appropriate to discuss your discomfort with using your Chid's picture to attract business, yes.
Some activities I want engage children in are swimming, anything outside, bowling, movie theater adventures, or anything they suggest.
I think CPR and First Aid certifications are a good start. You don't technically need them but they help and make your resume look better.
I think $20/hr is justified and well deserved with everything you do.
Pinterest is a really good app that I use to find new things to do. You might find some fun things on there!
This isn't the best way in the long run, but bribery has always worked for me, or threatening to take something away.