Demin is a no No!

On the invitation, put a dress code to indicate what people should be aware of when attending and there isn't any confusion at all.

This is done on all invitations sent to our family or homes also being notified what to expect when attending the occasion(s).

Definitely mention on the invitation that the dress code is semi-formal, maybe in brackets put dress/suit & tie so people really understand. This made me start thinking about my guest..if anyone is going to show up too casual. Our wedding is in a barn but it's still formal so I hope people don't assume they can just wear jeans and a tee..

Dont worry I have the exact same family hahah!! I mean it's like a... showing up in pjs to Christmas dinner is totally fine kinda fam! But on the invites we just put "formal event" so I hope that's enough! If someone shows up in jeans it's not a huge bummer for me.... now if someone shows up in a white dress the bridezilla might arise.

I will be stating on the invites "semi-formal (this means no jeans!)"

Most of my guests will probably take it as funny but I will also let them know they can feel free to bring a second set of clothes to change into after the ceremony seeing as how we plan on having bonfires later in the evening.

I mentioned on my invite the type of attire expected at our wedding and then on our website I used that spot to further expand on that, and I mentioned there "no denim". I assume there will be one or two that don't listen, but I've done the best I can

I'm having the attire written out on the invitations and then again on the wedding website, where it's more spelled out: no jeans, runners, t-shirts, etc.

At the same time, we can't control how others act, if someone shows up in jeans, that's on them. You can talk to them and ask that they don't wear denim but in the end, it could still happen. Trust me, no one will be talking about how Uncle Bob wore jeans to Cousin Kate's wedding, they'll be talking about how nice you look!

If you indicate a dress code on your invites you should be fine! You could also include a section about the dress code in your FAQ on your website and then you can literally just write out our dress code means no jeans, no shorts, no flip flops...

I guess the first question is: Is this the hill you are willing to die on? Meaning - is this the fight you really want to have? If it is THAT important to you that it is, then have a serious conversation with each of the people you're worried about. If not, then let it go.

That would drive me nuts too! I'd indicate on the back of your invitations, RSVPs or website that it's a "black tie" or "semi-formal" affair.