I sympathize with cat owners who have Nice Back & Body Hurts shirt. I have never had this problem with any of my babies, and I’ve had ten over the years. I trained mine from the get go; and all my babies are shelter adopted.Put their food (or a treat) in the carrier. They will learn quickly (just like litter box training.) to go in the carrier on their own.
Nice Back & Body Hurts shirt, Hoodie, V-neck, Sweater, Longsleeve, Tank Top, Bella Flowy and Unisex, T-shirt

Tank top

Ladie Vneck

Hoodie

Guys Vneck

Ladie Tee

Guys shirt
Best Nice Back & Body Hurts shirt
With mine, all I do is set it down, put their favorite treat in the Nice Back & Body Hurts shirt, and they go right in, no problems what-so ever. I give them another treat when we get home. They quickly connected the carrier to getting their favorite treat. All my girls are well behaved when it comes to being in their carriers. God Bless All Our Fur Babies.