I planned my trips (read: spent a couple of minutes on them). I went through all countries from Budapest to London. I was only 16 years old at one time. I did fine. Adults, in the age of smartphones are having issues? It actually is wild to me.
Being 16 was a benefit - you didn’t know anything so you checked basically everything.
This kind of thing captures older adults who know everything and have never heard of a trainset split.
I made a similar mistake years ago in NY - I assumed that the impressive subway system could get me to the airport, but you transfer onto a bus that gives you a VERY detailed tour of some neighborhoods.