What is a satisfactory voting law?

Not in the U.S.A.

in the 1930's you had to be a male and you had to be atleast 18 yeats of age to vote

18

It means essentially the same thing as the current 'in-vogue' phrase, "It is, what it is." It means the law is not negotiable. It may not seem just in some cases but it is, above all else, the law.

The type of government is called a democracy.