What age can ancient Rome senators vote

Ancient Rome had a political system of direct democracy, meaning all citizens that wanted to participate in politics/voting could come to the place that was decided upon to meet at and they’d debate, being able to vote wasn’t a matter of as as much as it was a matter of gender. In Ancient Rome any male citizen could vote and participate in politics. You had to be a true roman however, you could not be a slave, both of your parents had to be true Roman citizens. Senators were voted and elected and Rome even had a system where they’d vote out a politician that the citizens believed would amount to too much power, the politician voted out would be exiled from Rome for 10 years, this prevented corruption within Romes government in the beginning, this practice was stopped after awhile.