Route learning is absolutely fine
You're getting paid to look out of a window.
You're given details about the route (stations, signal boxes, junctions, tunnels, line speed, signalling system as well as things to be aware of, for example, curved platforms, starting signals, busy during peak hours, right hand dispatch/island platforms etc etc) and go over the route numerous times over a couple/few days before, basically, drawing a map of what you've just learnt over those days and regurgitating the information provided at the start of your route brief.
Enjoy your time route learning, it's fine
