Stating first that this is a MYOB issue, I taught 6-12yr. olds for 17 years (and that ended in 2000). Also, my sister & I went for a supervised trip to England, Ireland & Scotland (and we were let's say,+45).There were many times we were closely supervised - but still got lost. We had problems with the money exchange rate,& the languages were difficult (& I'm an English lit major-I thought I knew it all!)And, we were exhausted- I can't imagine a 90 yr.-old keeping up, especially with a young girl. I don't mean to throw a wet blanket on the party, but especially with changes in the world situation since 2000, I don't know if I'd go abroad right now.I may not know all of the specifics of the situation, but as an honorary Militant Mom, I'd say no way, no how.