I'm in favour of it. I think it's a good policy.
TFSAs have great benefits for seniors and also for people at lower income levels who would like to save for their retirement—I'm sure there are some—and right now they don't really have the incentives because the benefit they will get in retirement from those savings that are tax deferred will be greatly clawed back, so they basically don't really do it.
What the TFSA does is that, if there is a big chunk of money coming their way, it could be an inheritance or anything else, they will be able to put it in there and have a tax-efficient retirement. I don't see why that's a bad thing.
Another thing to consider is that the interest rates right now are extremely low, and if you want people to be able to save and earn in safe financial instruments and earn a decent income, then TFSAs are a great way to do that.