I don’t think suggesting birth control was a banal comment. The title is “Proven techniques to stop a toddler from crying.”
I know kids well enough to say that they will adapt to whatever “technique” you use. Maybe distracting this kid by asking what noise a farm animal makes will work today, but a week from now, probably not. Kids cry and shit and cause all sorts of grief. They also bring all sorts of joy.
The only way technique that will really stop a toddler from crying is to not have one. If you have, want, or will be getting a toddler, prepare for tears.
Of course, maybe a technique that lasts a day or a week will be a frigging godsend.