Yes, kids are welcome.
If your invitation says "and Guest" or you previously specified a guest was coming with you, then yes. If not, we would prefer it just be you.
Cocktail, please. But we want you to feel comfortable, so if those shoes are too high or that top button is too tight, let it all hang loose.
No, we will be having an unplugged ceremony so please put your cameras and cellphones away and let our photographer capture the moments.