Hello and welcome Sharon
I can understand your nerves but honestly you will be fine. I have been on the highlights of Tuscanny tour a couple years ago and it's a great tour not to hectic, hotel right by the beach, and a nice village a stroll away, breakfast and evening meal are in the hotel, and there is a nice bar/veranda area for socialising in the evenings.
So why do the family want you to go door to door, do you live somewhere remote?, as Sally said there are many people on here who have to travel far and wide, some from Ireland, Jersey, Cornwall, etc..so you might be able to find out an easy way to get to the airport.once your at the airport your with all the others.
Please pick our brains and also have a look at the other messages on the boards, review section and hand hints might answer some of your questions.
I hope you pick that phone up and make the call to book this tour, once you have done one tour I am sure you will be back for more, I have my 10th tour booked for this year, been travelling with JY since 2006.
Cindy