grumpygranella, don't take it personally. Six year olds can get distracted, and are easily bored. Sitting in front of a screen, with their grandparent, may not be the most exciting thing they could be doing right at that moment. Although, of course, for us, it probably is!
I think, when that happens, we all need to be content with a quick greeting from GC, a chat with mum or dad, and waving them goodbye, and blowing kisses, until next time.
Have any of you got all electric cars? Pros and cons please.