>>351494But what if you don't know which direction you should be going? There might be a road 2 miles north of you and two miles south of you and what if you start walking east because you don't know about those roads (Or got turned around or didn't bother to note which direction the road was in etc).
My friend went camping up Caerphilly Mountain a few years ago and a guy approached them asking for help and saying he'd gotten lost and had been up there for two days sleeping rough.
I think it's much easier to get lost than you anticipate.