What would you do if you saw a transwoman walk into a public female restroom where there are little girls inside?

there's a transwoman (male to female) walking into a public female restroom several seconds after some little girls went inside first

you see another guy going to stop the transwoman from entering the public female restroom

what would you do in this situation?

Do nothing because it's none of my business
Stop the guy from trying to stop the transwoman
Help that guy to try and stop the transwoman
Select gender and age to cast your vote:
What would you do if you saw a transwoman walk into a public female restroom where there are little girls inside?
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