In the Netherlands many people who take a bus or train have an app (9292 or NS). It's one of the most useful apps on my phone.
+ It tells me when my stop is coming up and I have to press the button to get out of the bus.
+ It reminds me to checkout.
+ It tells me where to find the bus when I arrive at a train station I don't know.
+ It helps me plan my travel so I can leave on time.
+ It helps me to know when the latest train goes home.
+ It helps me to find the shortest route.
+ It tells me if there are still public bikes available at the station of my destination.
Of course, flying is quite different. Nevertheless I regretfully "did have issues" with flying.
+ I have to buy and print ESTA forms every two years.
+ I have to print boarding passes.
+ I have to print how to go to my hotel after arriving at an airport.
+ I have to look at dumb displays to find my gate.
+ I have to have this paper document called a passport that can be lost and gets you on Interpol if you're unlucky, but that's another story.
+ I almost never get a vegetarian meal because these booking agents are terrible.
+ Try to do the paperwork if you travel with something fancy, e.g. robots. "That doesn't look like a laptop, Sir!"
+ Even making a picture of a carry-on to check if it's the right size might be helpful, because that's the current attack on the passenger.
+ If you travel so often, can you take a bottle of coke with you? No, you're a terrorist.
There are many issues with air travel.