One of my favorite things about working with very young children is that because
a) young children tend to do a lot of copying the behaviors around them, and
b) most of the people hanging around them are taking care of kids (them)
a lot of little kids REALLY want to take care of slightly littler kids. Today a toddler barely over a year old kissed a baby a couple months younger than him, tried to wipe his nose, and tried to feed him a toy apple. A couple kids older than Him then started trying to put him in a toy shopping cart to take him shopping. There's a 3yo who always tries to steal the babies' milk bottles to feed them. A 4yo tried to give a baby his own bottle once. A toddler too young to know any words yet will shush me if any of the little babies are laying down to sleep.
Obviously we can't allow most of that but it always kills me π their age is the standard and anyone younger than them is Actually a baby