Hi tied,
You must be very concerned.

This might sound weird but I guess it's something I could see myself wanting to do in years to come. Not that I'd actually do it but I'd probably "like" to do it, but not if I was a danger to myself or other people on the road. It's a bit like role-reversal where instead of waiting up all night for the children to get home safely or wondering what they're up to, you're worrying about whether your father will arrive safely.