raywest

Chosen answer: The baby-manufacturing machine had been shut down for some time when Tulip wrongly inserted the letter requesting a baby boy. The machine, which presumably would not be working efficiently after such a long hiatus, accidentally produced a baby girl. That may be why the hair color did not match either parent. Also, this is an animated film that has little to do with the reality of biology. The baby is a girl, so pink hair would be an obvious choice. If it was a boy, it would probably be blue.

raywest ★

Answer: It could honestly be that he "needed" a little sister more than a little brother. Having a sister can be a completely different experience than having a brother, and the machine might have gone against his wishes because it would have been a better fit for their family. Additionally, it could also just be that there's a chance that the machine has the odds of having a boy or a girl at random, and that when a parent requests it, there's always a chance that it will not follow it to a tee.

Chosen answer: It could have been for a number of reasons. It would be expensive and time consuming to completely dismantle and remove a large piece of machinery. It may have been something that was being delayed until a later time or was to be sold. Perhaps the machinery, after retooling, would be reused for another purpose, and so on.

raywest ★

Answer: At around the end of the movie, you could see that when Hunter goes down with the package factory, you could see that the factory was connected to the Baby Factory off the side of the mountain. They probably didn't have the time to demolish that one and then rebuild the packages.