Worst advice ever. This depends 100% on your baby. Some sleep great by themselves while others want to be very close. I don’t think humans evolved sleeping in a separate cave from their parents. Just my 2 sats

Let them fall asleep with you then move them to the bassinet. The alternative is your sex life is over til the kid hits high school.

Some babies are crate trained. Its just called a playpen or crib.

Public schools

In the old times kids were many and were sleeping in the same bed. On the other hand adults had separate bed even when married. We are doing all the opposite

Put a raccoon in there with it. They will both benefit.