
What Marks Voting Where You Live?
In the US we get these handy dandy voter stickers that are sometimes different by state! I have seen in the past paint on people's fingers to show they voted. What about where you live?

In the US we get these handy dandy voter stickers that are sometimes different by state! I have seen in the past paint on people's fingers to show they voted. What about where you live?
Like I'm sure the fertility of the people living in these places with low birth rates is fine. Most people are probably still fully capable of having a baby, they just aren't because of whatever reason (that's not what his question is about, I don't care about that).
Wouldn't birth rate be a far more accurate way to phrase it?
Edit: Okay so birth rate = births per capita, got it now! So why wouldn't it make more sense to call it like 'births per woman' or something if that's what fertility rate means? Fertility leads to the logical conclusion that it's talking about actual fertility as in the ability to reproduce, not IF/HOW MANY times they reproduce. It's just a very misleading wording.
I don't mean morally and I'm not here to debate any of that. (Also I didn't know where else to ask this, which is why I'm asking this here.)
I'm talking what legal issues involved in marriage are so important that the government determined that it should only be between two people? I'm not married so I don't know what all legal stuff is involved in marriage beyond the actual marriage filing. I'm an ordained minister so I know about the process of legally marrying someone and how the documents are filed with the court and such, but nothing beyond that involving marriage is known to me.
I know someone will say 'tax purposes' but I am curious about what those purposes are. What marriage rights or spousal privileges are considered to need to be between only two people and not multiple? Is it inheritance related? Medical proxy related? Is there anything that couldn't be established with other legal documents outside of the marriage that makes plural marriage impossible to legally navigate?
Or is it a matter of just there is a cultural norm based moral judgement informing a law that exists for simplicity sake?