Just remove the work part man. It's incredibly frustrating when you run out of money. Add some credit card loan or something and your final score is the amount of money you have left. Also, add teleport button—I clicked the big red button thinking it would transport me instantly. Only to be dropped off to in the middle of nowhere. And when you select a departure from train station, it should auto-select the end-stop, so you don't have to scroll down and click it (which is non-obvious btw that you have to)
The reason you have to work is because the game is based on a BBC show called "Race across the world" where you have to race from point A to point B with the money equivalent of an air fare for the journey.
If you run out of money in the show or your funds are running low you can work to earn more money. So that's why I added that feature. I do think it adds a extra layer to the game as it's something you always have to think about