The entire activity of going to buy a few things for around the house during the weekend is something that is performed by a consumer. This guy is exactly talking about you, but you aren't seeing it because your own internal identity isn't Consumer it's something like "guy who wants a chill weekend." However in the marketplace your identity is consumer.
What point are you even making?
We all have to eat, we all have to wipe our asses, we (mostly) all need to change the oil in our cars.
I don’t really see the purpose in describing the purchase of necessities as an identity.