My limited understanding of the mess we are in;

Minor children near grows/helping with growing is a BIG no-no. In the end it is best that they don't even know it is there and they don't see you medicating/etc.
You >definitely< need to set up a lockable room with children present in the home.

Anyone who >>touches<< your grow needs to be carded. If they are a patient they can partake of the herb from the garden with you. If they are merely a caregiver for you and are not a patient they could get in deep shit if they are found to have THC in their system.

good luck going forward

blackhash