"Real democracies" is hypothetical like "Real Communism". In the Real World democracy means voice of the majority. So, if majority believes abortion should be illegal it will be.
Universal suffrage is an ideal entirely reliant on how the denominator is defined. Delineating the polity (i.e., polis) is an institution in democratic exercise--we traditionally punt this question to that of citizenship.
(On the opposite, you have countries where you can vote in local elections even if you do NOT have citizenship.)
Of course we do. Because it’s convention. But not everyone within a border geometry is a citizen. And why a border geometry is what it is usually relies on other questions.