Because farming gives you the same amount, if not, more loot then you would in a strike or whatever. Why go through the trouble of constantly dying, leaving teammates, and bullet sponge bosses when you have an easier time getting 5 times the rewards farming the cave.
Don't deny it, YOU KNOW ITS TRUE!!!
English
#Destiny
-
or or you actually work to earn gear you know, you feel better knowing you earned your gear rather than getting handed it by low level mobs