Hi Black oil.
Age is no barrier to fun and excitement!!
I'm 68, and cannot wait to get my hands on the GTI that I ordered today. 
Well Graham this has gone off topic a bit but for what it's worth and cut a long story short...
I had a loaner for 2 days after taking delivery of my GTI cause of an issue and the loaner nav after the nav pro really felt like a step backwards
True,the car was also unfamiliar but it just seemed like a lesser thing.Nav pro fills the space in the dash just right.