On Wednesday, the Obama administration announced new rules to ban all smoking in public housing across America. One last (we hope) goodbye present of infringing on individual liberty.

In the city, the Housing and Urban Development Department’s mandate will affect more than 400,000 tenants in 178,000 NYCHA apartment units— unless the Trump crew derails it in the 18 months before it takes effect.

“Every child deserves to grow up in a safe, healthy home free from secondhand cigarette smoke,” preached HUD Secretary Julian Castro. And never mind that the studies showing harm from secondhand smoke only find a real impact in spouses who breathe the stuff for decades.

“In our own homes?” a resident of Manhattan’s Amsterdam Houses asked WCBS 880’s Alex Silverman. “Then they should allow us to buy the little unit, and then we should be able to do whatever we want in here.”

Yes, smoking is an unhealthy choice. But the choice to do what you will with your own body remains a . . . personal right.

At least the flukes of 2016 didn’t bring us a President Mike Bloomberg, or we’d be looking at mandated regular kale smoothies.