They're not actually following Tim. Or rather, they are, if only unintentionally. X marks the spot, etcetera, etcetera. There's nothing better for Chara to do- and so they follow, trying to learn as they go, what it is to walk quietly in undergrowth. Twigs and death leaves crack under their weight- Chara doesn't know precisely how to walk to stifle that completely.

Perhaps at the end of this yellow brick road, there's peace. They can wander into the light, as it were, though the silence is perfectly acceptable in of itself. They look utterly out of place in scenery such as this; a baggy sweater in the midst of a fairly muggy environment. Doesn't matter.

Where, oh where could this trail lead..? That hardly matters either.

Still, it's something to do. Welcome to not putting your back into it at all. Welcome to wasting your time completely.