To think they're old enough to be told no?

[Cupcakecafe]

I'm getting married soon and having centrepieces similar to these.

There will be a few kids at the wedding, mostly aged 6 and one 10 year old. Stbdh thinks that the kids would knock over the centrepieces and get water everywhere and break the glasses.
I think at 6 and 10 they are old enough to be told to not climb on tables and pull things. I understand they may accidentally bump tables, but I'm not having the water to the top of the vase and the vases will be stuck onto the mirror plates with tape so a snall bump should be ok.
Stbdh still thinks that the children will still mess around and knock over vases and break them. Stbmil agrees and thinks iabu to think that they are old enough to be told to behave themselves.

So aibu to think they are plenty old enough to be told no and understand that?

This is so weird, when do you ever see children climbing on tables? Never mind at 6 & 10, I think they are worrying unnecessarily.

A woman climbed on some chairs to try and take a picture of me and my husband at my wedding, knocked the table towards us and spilt loads of drinks on my dress. A 6 and 10 yr old are the least of your worries lol

I think STBMIL and DP are trying to tell you that they believe some of the children they know would be a problem.

Why not get some of each type of centre-piece and 'randomly' allocate them to different tables, so the glasses with the lower centre of gravity happen to be among the tables where those children will sit?

If you don't mention it, nobody will think they have got second-best because both are lovely, even though you personally prefer one over the other.

P.S. Log this information about the children in your brain, in the section headed, "Things I must remember when inviting in-laws with children to my house."

Superglue might be okay but how fragile is the glass?

If it's very thin and does break easily, you might be left with upright shards of glass that's harder to clear away safely.

The glass isn't particularly thin, I don't think it would break too easily.

Very pretty OP. Slightly shorter plastic vases instead, as that v tall one is prob most at risk? With pp gel recipe and tape would probably be good as your just in case option