The situation: my mother left Canada as a young adult, just before the SIN came in, so she doesn’t have one, and getting one would be inconvenient. She lives in the USA where she holds US citizenship and has an SSN. She works full time and has no intention of ever leaving the US. On the other hand, she is already at retirement age and has no family at all in the US.
I think she should get an SIN. My logic: it costs nothing, it doesn’t hurt, and then you’d have it, just in case you ever want it. And what if I need to move her up here should her health decline? Her logic: why bother? I’ve never needed it before, why should I get one now?
What are some arguments on either side? It seems to me that our respective positions are based on our personalities (panic! just in case! vs. nuclear-powered optimism), not on logic.
ETA: I’ve added a poll, just because I’ve never done one and I think they’re fun.