Who do we feed at rehearsal dinner?

You pay for everyone who attends.

Someone should be paying for everyone who attends - if you're the ones hosting, it should be you. If someone's parents are hosting, they'd be expected to pay for everyone. We're having our dinner include our immediate families (parents and siblings), the wedding party, and the significant others of all those people.

I agree with PP, whoever is invited should be fed (by the host). Now, who you invite kind of depends on your norms and desires. We are inviting anyone involved in the wedding, SO's, immediate family & SO's, as well as all OOT guests and SO's. For us, that is about 50 people total but FFIL has graciously offered to host. I've seen rehearsal dinners go alot of different ways, some are just the wedding party, some are wedding party and immediate family.... I think a lot of it depends on where you are and what you can afford.

Pay for everyone who is attending. Usually it includes the wedding party, parents, grandparents and a lot of people extend the invite to out of town guests.

I totally have an unpopular stance on this but I didn't allow my unmarried wedding party members a plus one (people usually do and I've gotten flack from others on a different forum about this) because I'm tight on money but basically everyone in the wedding party and our families and the people helping out our wedding like officiant and AV tech person at rehearsal. I really think it's up to you - it's just a rehearsal dinner, so if there's no plus ones I honestly wouldn't be offended by not being allowed one but I know a lot of people say it's etiquette to allow plus ones to rehearsal dinner

I should have stated: our entire wedding party is family. 2 of my siblings and 2 closest cousins. His two nephews and two brother in laws. In the past I said. I didn’t want to have one because of the expense and my family said they would 100% pay for their own meals.

No one should ever pay for their own meal at the rehearsal dinner. If all you can afford is to order pizzas for everyone that is fine, it doesn’t need to be fancy.

The Rehearsal Dinner is usually hosted by someone--traditionally it was always the groom's parents--other than the bride and groom. Nowadays, it's a bit more flexible. For ours, FHs uncle has stepped up and offered to pay for it.

But that doesn't mean it has to be fancy or expensive. It can cost a lot to host all those people for dinner. But you can do a backyard BBQ, or pizza, or even deli sandwiches.

Traditionally it's hosted by the groom's parents and everyone invited is fed. For us, that's bridal party and significant others, immediate family, and aunts/uncles/cousins. Some people include their out of town guests & officiant as well.

Yes. Whomever is hosting the rehearsal dinner pays for everyone invited / attending.

We are hosting a rehearsal dinner and it will be for the 16 attendants in our wedding party, the 2 readers, and our parents. No significant others will be invited and no siblings who aren’t part of the wedding party will be invited because this is a thank you to all those involved in our big day.