Which public restroom should Dads take young Daughters and babies in?

There was one day my Husband had to take our six year old Daughter and one year old Son to the Mall alone and bathroom time was a nightmare.
We feel our Daughter is still too young to be in the public bathroom alone so my Husband went in the Men’s bathroom but all the stalls were in use, so he was forced to go in the Women’s bathroom and walked her to the stall and then waited by the exit door for her to finish and wash her hands. There is no changing tables in Men’s bathrooms so he had to go in Women’s bathroom for the baby’s diaper change. He said he got bad looks by some of the women in the bathroom, but it was unfair because he had no choice but to go in there. Another reason unisex bathrooms would be more convenient.

Which public restroom should Dads take young Daughters and babies in?
Which public restroom should Dads take young Daughters and babies in?
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