Really? I had two babies in that decade. I never heard of anything like that. I devoured all the baby magazines so felt up to date with baby care.
I bf, but added baby rice to my milk for the pre bedtime feed from six weeks.
I supplemented with full fat milk from the milkman from six months.
Babies had to sleep on their tummies to prevent inhalation of vomit.
Cot bumpers were necessary to prevent head injuries from the bars. Mine were in the big cot from birth.
Babies slept in their own rooms from day one. This was considered normal.
Four hourly feeds were encouraged and worked well as baby had a really big feed each time and stayed full, not crying for a feed until the four hour period was up.
In my neighbourhood not one of the mums worked. We supported one another on a daily basis.
None of us were over thirty. Most wanted their childbearing done and dusted in their twenties. We were all homeowners.
I didn't drink alcohol when pregnant, but was told off at a public event by a doctor friend for not drinking and was bought a large alcoholic drink! I have never smoked, but lived with my ex, a heavy smoker, who now has lung cancer.
It was a very different world. My DC are fit and well and have never had any health problems and are slim.
I'd be fascinated to know how much advice that is given now will change in the next forty odd years.