When you agree to meet someone somewhere at some time, all further communication is redundant (I expect you to be reasonably punctual and I don't need your SMS updates "Hi, leaving the house now." followed by "hi, I'm running 5 min late", I will wait, and if you are not coming, you can call me to apologize if you care one bit).

For people who don't know their way, you can use in-car navigation systems rather than smartphone map apps.

Ah, so I’m guessing 40+ and with a very select group of friends with a long term history.

While I agree, that isn’t something 99.9% of the population is going to do successfully.