He’s A King

He’s a king

possible explanations for Baymax being able to get 10 bags full of menstrual products:

Hiro updated his programming so he can have a bit of money linked to a debit card or something

Baymax has no money but found an employee instead. Baymax politely and calmly told them that he needs to get a small city's worth of pads and tampons right away, you see he has a patient and it's very urgent, and the cashier who does NOT get paid enough to argue with or explain the concept of capitalism to an 8 foot tall crimefighting robot was like "man, just go"

Baymax knows exactly how money and capitalism works but thinks it has no place in medicine, and regularly just straight-up shoplifts in the name of free and effective healthcare