Question content, Scope, Purpose

I have a quick question. I like how many of the questions we've come up with so far specifically target respondents who are recent immigrants, but I'm unsure if this fits the purpose of the omnibus survey project. Did Prof. Owen explicitly say that the target survey sample are B.C. residents in general, or did I just imagine that detail while dozing off during the lectures? Since we have to actually go find real life respondents to answer our survey after we have designed them, how realistic would it be that every person would know 5-6 recent immigrants to answer our questions? If my suspicions are correct, we should stick with asking how the general populace views immigration services/assimilation/cultural diversity rather than specifically only questioning immigrant respondents.