Who said people weren't? Remember, projecting your behavior and "morals" onto groups you don't know speaks more about you than them. When it comes to infants it can be great peace of mind. Breaking the instinct for many to constantly enter and disturb their rest, to make sure they're still breathing etc.

I agree they shouldn't be broadcast to the Internet or 3rd parties. Or placed in sensitive areas, or substitute parental interaction. But they have value. There just needs to be better methods for access not designed to be controlled by 3rd parties. For any new smart devices I get, matter or zwave/ZigBee are mandatory.