And the gravamen of those requirements is to have a law degree from an ABA-approved law school. Some states (e.g., California) do not have that requirement. All

And the gravamen of those requirements is to have a law degree from an ABA-approved law school. Some states (e.g., California) do not have that requirement. All states I'm aware of also have a character and fitness requirement. But it is nevertheless the case that the biggest hurdle for the vast majority of people, before they can take the bar exam, is having a law degree from an ABA-accredited law school. Which is why the link you provided highlights only those two requirements...