International friends and their kids

I do see what your wanting and how you're trying to approach this dilemma:

1. You do invite the FHs families international as full since they will have to make it a family trip with their kids and have your Canadian families limited though only in the city can find baby sitters for the day while the ones driving or flying in would have to consider their kids to bring.

2. You go one way or the other as to inviting everyone as full families so you don't hear any back lash about kids from some invited and not their own. Adults only event should be noted for reception if you feel no kids apart from the main family should be invited only and arrange a babysitter or provide the information for those that will want one for their kids if chosen to go this route.

We aren't planning on having children at our wedding either, I would say to the Canadian guests (if local) no children to give them a well needed night out. They should understand why guests from out of the country cannot leave their children at home.

It's not unreasonable unless your Canadian friend that are invited are also out of town.

If they live in town it's easier for them to get a babysitter than if they were from out of town. It is your wedding your rules.

We are not having kids at our wedding except for our 1 groomsman who lives out of town and is also bringing his wife but since they are out of town with a by then 1 year old it's hard to say no to them.