I am a registered childminder, childcare is not cheap so you are providing a service although obviously it's your gc.
We live in the city but I take my children into the community everyday. It's important for their development, meeting people, seeing nature, workmen, plus attending library groups, city farms, etc.
If the child was with me I wouldn't take a child on if parents requested that we weren't to go out.
My parents appreciate all of our days out & the experiences that their children get.
I'm sorry but I think the child's parents in this case are perhaps rather misguided as to the needs of their child. As people say, it's their call but unreasonable to expect the op to abide by this
Blusters in corner if my mouth
Retirement is it what you thought it would be?


