Hello everyone. Ladies, moms, question: how do you teach your child to…

Hello everyone. Ladies, moms, question: how do you teach your child to fall asleep independently? At what age did you do this and did you even do it? How bad is it that he gets used to falling asleep on his breast? And, to avoid creating records, do you show your child a phone, TV and other gadgets? I try not to show anything, but my husband talked to his mom today, turning the screen towards the son???