How important is walling in Black Forest?

900 elo on team games here (800 solo), I only play Black Forest in team games and usually play flank as I have a better win rate there. Usually I like to wait before walling, at least until I have 10 vills but usually 15-20 with loom. The exception is when there's a long chokepoint with resources in it.

But every time I do that there's always someone in my team getting mad at me for not walling and getting in an early 1 minute fight just to lose 2/3 of my starting vills. I don't really see the point in walling so early when there's no resources to cover or fight over - my view is why bother fighting over an extra 6 tiles forward; the enemy is just gonna wall there and I can wall up against it?

Is there some significant importance to get your wall up as close to the enemy as possible? Even if it's just a few tiles?