I suggest you read into the quran and hadees with translation of course, for your answers.not sure about 1, but 2 and 3 i think ive heard:
its a mans duty to look after his family, he needs to equally distribute to either kids and even his brothers family etc etc, a woman doesnt need as much as its not her duty..sorry im alsO just learning, i also had lots of questions as you do, i think women are not mistreated, how can you be, its a mans DUTY to provide financially, its a lot harder to earn money than it is to wear a ninja suit…
when people say ninja..i assume you mean head to toe, face covered, the face veil is debatble, people mostly agree on just the head covering being mandatory, not just islam, jews are also required as are christians…nuns also cover their heads…no one questions them hey…