Well, I've been a student in Canada on and off for a few decades at three different universities in 3 different provinces.
The cost of living is almost universally higher than the cost of tuition.
As for tuition, it is easy to find on any school's website what the difference is for in-province tuition vs out-of-province tuition. [Get your kid to do this]
My advice for undergrad is that for the vast majority of programs, pretty much all Canadian universities are equivalent in terms of quality of education, so the best bet financially is to go where the cost of living is lowest.
[You should do this since your kid likely doesn't understand COL factors, but you should work through budgeting with your kid, because cost of living is expensive everywhere in Canada, and there are rental shortages everywhere and students usually can't live in residence behind first year]
However, if your kid is industrious and understands the value of networking, there is a significant advantage to attending university where you want to end up working afterwards because that means 4 solid years of networking opportunities. [Talk to your kid about this, and if you don't know much about networking, find someone who does to talk to your kid about this]
For provincial funding, just google "Manitoba student aid" and this is the first result:
https://www.edu.gov.mb.ca/msa/[Get your kid to do this, help if they need specific documents]
Get your kid as involved as possible in figuring this shit out. First, they're a digital native, so it's probably easier for them to find information. Second, their school has tons of resources they can ask for. Third, me figuring this shit out for myself was the first step in me learning to make things happen for myself.