To ask you what is reasonable

[Highlandfling80]

My dbrother is always saying we should visit more. He lives 200 miles away. However as on holiday a bit closer say 60. Miles we have decided to visit. I plan to take wine and treats as we are a family of 5. He has suggested that when we arrive we go shopping with a view to us splitting the grocery bill. We will be staying one night and have to of course pay petrol to visit.
Now I am in two minds about this. We probably have more money than they do so do you think this is fair?

I guess it was takeaway thread which in a way which prompted post. Thanks for replies.

Just tell him you'll shout everyone takeaway, and bring bread/juice for breakfast in the morning.

It'll work out cheaper and easier than paying for half his grocery shopping!

There's no hint he's going to charge op for the weekly shop. It may well be that he wants to make sure he gets stuff you'd like.

No I don't think he plans for me on go halves on weekly shop. I think I will go down the takeaway route.