"Modern parenting may hinder brain development, research shows"

[enough]

3. My grandmother told me that, after she gave birth to my mother (1921),

she had to fight against her own instincts to go and cuddle and comfort the baby. Her husband and family believed in child-raising theories that babies were supposed to be fed and handled on a strict schedule, and cuddling or feeding on demand would spoil them. She described sitting outside the door of the baby's room looking at the clock and crying in misery because she wanted her baby so badly and the baby was screaming. She used to "sneak" extra non-scheduled time with the baby when nobody was looking.

She was a very young mother at the time, and grew a lot stronger in self-confidence as she got older. Eventually she had five kids, and treated them with lots of love and attention.

You're right, "old ideas."