The joke is very simple, and is the same regardless of the child’s gender.
The dad is saying that the child can be whatever they want to be, while holding things that show he has his own specific preferences that do not align with the child’s preferences.
That’s the joke, that the dad’s actions instantly betray that he’s lying and has some sort of agenda when approaching this innocent child who likely has no agenda.
The joke is very simple, and is the same regardless of the child’s gender.
The dad is saying that the child can be whatever they want to be, while holding things that show he has his own specific preferences that do not align with the child’s preferences.
That’s the joke, that the dad’s actions instantly betray that he’s lying and has some sort of agenda when approaching this innocent child who likely has no agenda.