covid tier 2, My home or thiers?

Childcare is exempt from the rules regardless of which tier we are in, although probably those in tier 3 would be encouraged not to travel in or out of the area for their childcare arrangements.

It makes perfect sense that people can continue to work to keep the country running, without having to worry about childcare.

My baby grandson is coming to our house to be cared for while his mum is at work. We do it like this because it suits us and I can't see any difference to be honest.

If the rules are so vague that you can’t interpreted them then do which ever feels right and comfortable for you

I think they can come to your home but tbh I'm not sure. Sorry I can't be any more help.