I highly recommend you read this article:

“What’s worse, the CLASS Act is a ticking entitlement time bomb. Every expert who has looked at it — see here — reaches the same conclusion: It’s a poorly designed and ill-advised program that will suffer from severe adverse selection. Because it is voluntary, it will attract mainly enrollees who are at a higher risk of actually needing the benefit. Consequently, the premiums will need to be set very high, which will only make it even less attractive to healthy workers, who generally aren’t that interested in long-term-care insurance anyway.

Very quickly after the first decade, CLASS’s finances will become untenable. The premiums, though very high, will still be insufficient to cover all of the entitlement benefits earned and expected by participants. As the program rushes toward insolvency, the only options will be to cut promised benefits, raise premiums even more, or — surprise! — bail the program out with taxpayer subsidies.”