I'm not saying it's hard or impossible, just extremely impractical. It'd be like insisting on walking for long distances when you can take a horse or train.
> or (shocking I know) ask people in the street.
Try that in a country like Sri Lanka and at best you'll get scammed by paying a commission for the reference.
Planning only gets you so far. You can't predict everything ( for instance I've had a museum that turned out to be closed, and another one that turned out to be in a really dodgy part of town recently).
As for my age, I'm what Americans who believe in that crap call a millennial, but I'm from Eastern Europe, didn't get my first phone until well into highschool, and my first smartphone slightly less than 10 years ago ( so I've spent more than half my life without a smartphone).