Yes
The zoo does give kids a map. They are very helpful in not getting lost in the park.
The cafeteria has a family restroom.
There is the family bathroom in the bistro. There is also a bathroom near the elephants that was empty every time I passed. Which was often because I got lost. I would also invest in a map. That's very helpful. The bathroom by the train depot is good but it usually has a line as the train runs the whole day and the train line can be pretty long not to mention you'd be sharing that bathroom with Starbucks patrons.
The cafeteria has a "family" bathroom that would be more than adequate!
Don't know that
There are bathrooms with handicapp stalls and there is a Starbucks near the train station with a private bathroom. The best option for privacy is going to be that train depot area.
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