Probably the clients are the ones who do not require that. Remember that there is a different set up for USA and Canada.
When I was living in the States, I was always aware of the difference. But Lisa, they CLAIMED, but it has never been proven that Canadians don't need a background check. I have told them I would not do any background check to do a mystery shop. They repeatedly insisted that I do not need it and asked me to do them. Time and again, it never went through.
I think they have very limited number of shoppers in my area and oh, I really can't do any "tongue in cheek" as you always say or know when it applies, but we do have different laws in Canada so it probably has something to do with it. But it remains to be seen if Canadians are indeed exempted from background check to do BV.
Last year alone, I had a background check for Jury duty, airport pass, charitable company, volunteer work, whatever. There is no way I will do a background check for a mystery shop. I think I have proven enough that I am not a potential criminal at least to the Canadian government. lol