Yeah that could be one of the reasons :p another reason can be that they think its a mans job :p
So how often do you take out the trash and how often do you roll it infront of the house mirch bhai?:D
Luckily I have two teenage boys. I and their mama have trained them to a point where they do in without me or their mama asking them.
One more benefit of marrying and starting family at the right age. :D