eh, as a photographer that works weddings, any wedding without a planner is hell for me. i might actually just say no if that's the case.

if you hire people to work it you should have a person who can be their go to while you are getting married.

if you go for an event like you describe people will be unhappy at the lack of food and leave after not long. if that's what you want, good for you. go for it. if you want people to stick around and have a good time, you need to feed them. that's expensive, even if you somehow make it all yourself with food from the farmers market, it's still going to be over a thousand dollars for most people. again, unless you only invite like five people, but most people care about more than 5 people. throwing a big party of any kind isn't cheap unless you throw a terrible party.

you don't have to have a traditional wedding at all though. my sister got married during COVID in her backyard on video call. it was lovely. a big beautiful wedding with lots of people is also lovely and uniquely fun. just don't let you relatives pressure you into things you don't want. there's where it always goes wrong.