Reply To: Mitzvos wen don’t keep anymore

See O”CH 158:4 MB sk 20 for washing the hands.
Could be that wine used to be expensive, so they didn’t use a kos during the week because they had none.
Kiddush between those hours is a sakana, according to the Magen Avraham, from mazel maadim, and whoever doesn’t care will be protected from the heavens.