That’s totally fine, but you can’t do what my MIL did.
My husband and I fully intended on paying for our wedding ourselves, and as such, it was going to be a backyard BBQ with immediate family and close friends. His upper class, gorgeous 3 story house in the suburbs family thought that we needed something much “nicer” and didn’t understand why we weren’t doing it. We explained that we were having what we could afford. And of course, out came the complaints that “Shouldn’t her parents be paying for that?” Well, my parents live in poverty and I was not about to hit them up for a wedding. My parents did give end up giving me a $100 check, and I knew that they scrounged for it. But they wanted to be able to contribute, however small.
Wow.
Sooooo…after lots of badgering and guilt trips about how given my husband’s health history it’s only right to have a big celebration we agreed to let his parents pay for a larger, but still very modest wedding. I guess that was a ploy to guilt my parents into paying more, because every few weeks we would hear about how we needed to get my parents to cover XYZ, and they would not take no for an answer. Finally, his mom tried to confront my mom about it, and my husband stepped in and made it clear that if she approached my mom for money, that the wedding would be off and we would do the original backyard idea-and she would not be welcome. They simply did not understand that my parents could not contribute a cent more. And besides, in my family, the wedding is always paid for by the couple. (Probably because of money).
Wow.
If you take a hardline stance, you have to be ready to graciously attend whatever wedding they can afford, and you cannot make them feel bad or guilty about not being able to invite the whole family like their sisters did. You also can’t make the bride or her family feel inadequate.