My niece (2.5) has recently started this although it is random and short screeches and only about 3-4 times a day. Usually just when she gets really excited about something. Still drives me nuts. My older girls are all obsessed with dolls lately.. they don’t touch any other toys unless what they are using can be used with their babies in some way shape or form. I just tell her “shh that hurts your babies ears” or “baby is sleeping” and she stops