Thanks for all the kind words and help.
To answer a few questions and provide more info.
-I am going to too many places.
-Berlin, Boppard, Munich, Rome, Florence, Milan (one day yo see the Last Supper) Paris and London. About 3 weeks or so .way to fast but. (See next point
-I am traveling with my Buddy and his mother and my Sister in law. My buddy and his mom have never been to Europe and my SIL has only been to Paris for a couple days. (Oddly she has been to all 7 continents and 35+ counties, but put Europe off until last) So this is like a samplers pack. My Buddies mom is elderly and frankly this is her one and only “trip of a lifetime”. My buddy odds are will only do this one trip as well. My SIL views this as a way to see enough of Europe to help her decide what Cities she wants to spend more time in as she intends to start traveling to Europe now. So this is a pretty busy trip. But it was a chance to try traveling over seas again.
-I have done a bit of domestic travel in the last two years. Two trips to Florida to see family and a trip with my SIL to New Mexico (the Carlsbad Caverns are amazing and the equal to anything I have ever seen).
So I have used a bit of the more advanced system
-Boarding passes on my IPhone,
-Biometric scan for PreCheck security.
-the Funky welcome signage that Delta is playing with at DTW.
I used a fair bit of technology last time I was over seas, Smart phones for GPS and things such as Citymapper to get around.
I use contactless cards on my smart phone all the time stateside will be interesting to see how this goes over seas,
I will download the App for boarder entry back into the US as I never did get global entry. I have PreCheck and my bio stuff is on Delta and I used that but no Global. I am trying to get Nexus Card as I have a few trips into Canada I want to go on and I know folks over there but it is well over half a year and my application has not moved off waiting for review.
-I have my Cell phone figured out (will cost about $100 but I can use it pretty much as much as I want. And I will be playing tour leader on this trip. (Scary thought that)
-I have AirTags on order, but have never used them. Can they be set so that if they get to far away the alert you? I have an Apple Watch so the thumping would alert me. I was thinking I could get my buddies mom to keep one on her and if she falls too far behind.. get alerted. She is a nice lady but she tends to stop and look at things and never tell the rest of us.. It is bad in Costco it could be an issue in Europe.
-we will all have carry on sized bags and small back packs of day bags. So we are pretty good that way. But will need yo consider laundry.
-We will have a car for the Berlin to Munich part of the trip.
Anyway that is about it now.