Do you agree with living in before marriage?

It doesn't work out any better than marriage. In fact the statistics for it are even worse.
I don't 'believe in it' It does lead to casual relationships that do not work out. '
I see too many single moms take a new guy (they just met) home and say this is your new daddy.
Some kids get more daddy's in a single year than they get shoes.
Then it teaches their kids to have a confused lackadaisical view on relationships.

I think it's souly down to the individuals concerned: their thoughts ,their feelings, their moral issues.
It's nobody else's business.

No

I see it as a good test as to whether you can live with the person. There doesn't have to be sex, though it might be dificult for most to abstain.

The important thing is that you make the decision together. But if it would cause too much strain on future in-laws, that might be trouble that doesn't quite go away.