[K Peculier]

I would say you should bump the age by at least two more years; so around 6 or higher rather than 4 as it's a little too young to have still while out in public.

I'll also recommend to delay immediately playing the character if you start at 6 since it may be a bit jarring to go from unborn to 6 for the parties involved. (So the parents can say you're already born already.)

If you're fine with 6+ you're good to go.

As another note you should try to avoid being the worldwide kid in every location without any supervision as well to avoid getting stares and judgmental looks.