IINM a whole family doesn't.
Reminds me of a brisker joke
Brisker (allegedly) are makpid on pikuach nefesh so they don't fast on many taanesiyos.
So a brisker comes home on a taanis and sees that the breakfast table is set for two.
"Whats this?" he asks
"Breakfast", says his wife.
"why two settings?"
"One for each of us"
"But its a taanis" he says
The wife replies "so? We're machmir on pikuach nefesh!"
"You are a woman, you don't keep all the chumros"