"How bad things must be if the government resorts to giving us free money with an expiration date to force us to spend? I'll spend my 100$ card before it expires but I'll save extra 200$ of my salary compared to before. I have to brace for the worst that it's yet to come, it's going to be really bad before it gets better, especially given that the Government is resorting to giving us free money "

The more you use extreme measures to force people to do what they don't want, the more they'd refuse to do so.

When people are scared and paralyzed by fear, messing with the unit of account won't calm their worries, if anything given how out of the ordinary it is, it could be argued that it makes things worse.

Money is external, people pick the scheme apart rather quickly and you end up worse than before because now you look desperate to force them to do what you want