I have two responses.
First, and your colleague referred to it, there's the events in Scotland. The population is adapting to the rules established.
Second, in Canada's case, clearly a significant change in political culture would be required. One of the consequences of adopting a proportional electoral system is the more frequent occurrence of minority governments. The population is used to this type of government.
One thing would be different in Canada's case, and that's the occurrence of coalition governments. There's no tradition in that regard here. Sometimes coalition attempts were made that could be surprising, but there was never a real coalition. This could be a significant change in political culture.
Another important factor is how the media will act. Those who cover political life must also adapt to a change in political regime. This will change in particular how they cover MPs. If there's a different electoral system and the party discipline is relaxed, the media would be required to change their ideas and view of an MP's role.
Work must be done not only for the public, but also by the witnesses who cover political life, and that requires information. A factor that was also measured is the importance of having citizenship education courses, which do not really exist in Quebec. The public is largely in favour of this type of course at school.