I don't know what it's supposed to mean, though. I like brunches. My son likes them as well.
I mean: any part of life is not life. Kids are not life.
Or am I missing something?
I take brunch and life to be stand-ins for two notions. Brunch as the ability and desire to wish for a lazy day spent as one wishes, desultory consumption of something nice and/or new while in control of our time. Life is the sum-total of all meaning we accrue along the way, including our experiences from events we are thrust into.
It's lightness and weight, as in Kundera's 'Unbearable Lightness of Being'.
Lightness is nice, it's comfortable, but vertigo inducing. So we also long for weight sometimes.