There was a tbread not long ago that mentioned this issue for canada and i believe tbe conclusion was to book for two.
www.flyertalk.com/forum/marriott-rewards/1890144-extra-person-fee-children-canada.html
stayed with kids in calgary on awards a couple times this year and it was not an issue.
Originally Posted by
DFWsakp
I saw this happening at the following:
1. Sheraton Bugainvilias, Puerto Vallarta, MX
2. Sheraton on the Falls Hotel, Niagara Falls, ON, Canada
3. Kanaskis Mountain Lodge, Autograph Collection, Alberta, Canada
4. Delta Hotels Whistler Villages, Whistler, Canada
These are the 4 I have tried on the Luxury side (although the MX one I doubt is Luxury) and faced the problem every single time. Now if I am booking at Fairfield Inn, Springhill etc. then there is no issues and they will take even 6 people without any charge.