most of these states have active efforts for legalization in at least some context, many have CBD legal but not THC (what gets you high), and at least in Kansas there is a "loophole" where hemp products can contain up to .3% THC (so just really big edibles)
"While the literature is contradictory, most studies suggest that CBD is not converted to psychotropic THC under in vivo conditions. Nevertheless, it is certain that CBD degrades to psychotropic products in acidic environments."
That’s federal law which allows the 0.3% THC by weight. Anything under 0.3% usable THC by weight is classified as a Hemp product under the 2018 Hemp Farming Act
The 13 with no legalization:
Idaho
Wyoming
Nebraska
Kansas
Iowa
Wisconsin
Indiana
Kentucky
Texas
Tennessee
North Carolina
South Carolina
Georgia