I probably wouldn't, because it's a pain for babies to try to move in dresses.
However, I think the 'ooh, it's not right' line of thinking is, frankly, bizarre.
In the past week I have been told my toddler is a boy because:
- he's holding a ball.
- he's wearing a blue top (under bright pink dungarees ...).
- he's having a tantrum (only boys shout
).
- he's strong (girls are nesh and weak).
- he can walk (?!)
- he is wearing striped socks ('boy' socks, apparently).
My toddler's other mum is a butch lesbian and dresses her DD basically like her. I dress her in aforementioned pink dungarees etc. What is interesting is that there is no noticeable reduction in the assumption she's a boy, whether she's wearing tiny check shirts and trousers or bright pink dungarees.
Equally, my friend whose baby has gorgeous blond curls told me he's often taken for a girl, no matter how boyishly dressed.
You cannot change this, because there are absolutely no visible distinctions between fully-dressed boys and girls at this age.
Dress the child in whatever the heck you like, but perhaps get used to smiling and nodding and not correcting people who use the wrong pronouns.