Ceremony seating?

I would rent some chairs. or even ask around to friends and family if they have those ikea chairs.

The biggest thing would be to keep in mind the elderly, and then both sets of parents. I think everyone else would be ok with standing. My cousins wedding had seating, but there was not a lot, and quite a few people ended up standing, but their ceremony was only 30 mins, so it was perfect.

It is nuts the cost of chair rentals, so I would say do the bare minimum if you can

You can definitely do it but you’ll have to keep it short. Also, make sure to consider your elderly, very young, and any guests who may have an impairment. If that makes a majority, you may have to rent the seats.

I dont think most people will mind for a short ceremony. I know some older guests may not be able to stand for 10-15 minutes. As long as you have a few seating options it should work out fine.

You can avoid chairs for the most part though knowing if the elders will need to sit down. Reserved sign placed will help to know those individuals will be seating there rather than those that can stand if needed to for the ceremony.

Putting some chairs though may be an option if chosen if the children will need it as the parents will feel more comfortable than holding them.

My friends had a different kind of wedding, it was way more about the party than the vow portion of the wedding. The ceremony was super quick so standing for a bit wasn't an issue.
They had chairs in the front and invited anyone who needed one to take a seat, the rest of us stood behind and it worked great. They knew roughly which guests would need seats and added a few spares.

I've been at ceremonies where there wasn't enough seating and people just dealt with it - I think there were people standing at my wedding and they just dealt with it. At least at mine our ceremony was only 10 minutes or so and all the older guests were given seats because people are just kind

I wouldn't worry too much about it unless you only have like 10 chairs for 100 people!