article by BabyCentre apparently confirming some sex-based stereotypes & 'gender identity' as inherent whilst completely missing the impact that adults will have already had on babies & very young children with their gendered expectations, behaviours, socialisation etc:
'Boys and girls: developmental differences'
(extract)
"Children do develop slightly differently depending on their gender. But there's more variation amongst girls and boys than there is between them. Every child is unique and will develop at his or her own pace.
Gender identity
Toddlers may know their gender by the time they are three years old. However, toddlers live in the present, and may not realise that their gender now will be the same when they grow up.
Until toddlers are about three years old, they will just choose the toy to play with that they enjoy most. Whether it’s a doll or a toy lorry will make no difference to them.
It’s difficult to avoid your toddler being exposed to gender stereotypes. Between three years old and four years old, children may start to choose the toys that they think are appropriate for their gender. " (continues)
Getting dressed
On average, girls learn how to do the fiddly things, such as dressing themselves and scribbling, earlier than boys.
Both dressing and scribbling with crayons involve fine motor skills. These are the small actions that toddlers make with their fingers and thumbs.
Making friends
Girls tend to develop social skills, such as the inclination to play with other children, earlier than boys.
Physical activity
Generally, boys are more active and restless than girls, but it's a small difference. All toddlers love to keep busy by running, jumping, and throwing things. And all toddlers need at least three hours' activity a day.
However, there is evidence that boys are slightly more likely to let their anger show when they are frustrated than girls are. " (continues)
www.babycentre.co.uk/a1038526/boys-and-girls-developmental-differences