Not clicking any blogs or links but
"He visited a family and striking image was that the baby of the family was drinking cold tea out of a bottle. The family were happy and healthy "
How did he know?
fwiw i have no problem with tea in a bottle, havent done it but i cant get my knickers in a twist over it, however how on earth could your DH know from a visit, as a headmaster, that the family were all happy and healthy? What an odd conclusion to arrive at based on that observation.