Ha ha! It's like all modern technology, if used wisely, it can be an advantage - such as advance traffic information - helped me going home the other week, as a major section of road had been closed off due to a fatal crash. Last year, on M25, it showed me the issue in time for me to turn off (& before traffic reports on the radio) - the section was closed for 4+ hrs due to a fuel spillage, so I missed getting stuck.
However, if used without any idea of direction or distance, then watch out!!
Some years ago, one of my wife's friends was coming to visit. Her route to the M25 was simple, an extension of her route to work, so should have been easy. Then around the M25, up the A1(M), & turn off. I was expecting a 'phone call as she got close, as the last few miles were slightly more difficult to navigate.
Journey should have taken about 2.5 hrs, even with a stop for her kids to have a quick loo break. Some 4 hrs later, got the expected 'phone call - but not the expected content, she was lost. So, I asked what was the last motorway junction she remembered...... There was the problem, she hadn't been BEEN on a motorway at all, & was about 50 miles west of us!! Goodness what she had followed on her sat-nag, as when I checked after she eventually arrived, it had "fastest route" selected as default.