You need to teach them how to behave in public places

Yes it's very nice

No, casual is just fine.

No, its also better if you do takeout so you know you have your entire order as opposed to ordering from a third party application

Yes!

If you do apps, salads and entree, you'll probably spend aroungd 200 a couple. We did the lobster crab cakes. They were huge. Also did salads. I had the best porterhouse steak Ive ever had. My wife had the Capital Burger. Everything was top shelf. Wife and I do not drink. We spent $205 plus tip. 3 courses of fantastic food and great service. Well worth it.

Yes, recommended for anything larger than a party of two. Especially near holidays, you should book reservations at least a week out.