She got the Cricut 2 years ago this Christmas, and she did some shirts that week, that still look brand new.
As long as you turn the shirt inside out while washing it, and hang it up to dry, it should in theory last years. For $6 and change, even if it did fall apart at the 3 or 4 year mark, I think it’s well worth the effort.
They are really cool tools. She’s made me a bunch of custom vinyl clings, and permanent vinyl logos, etc...
She did a permanent one for me not to long ago, for my coffee mug. It’s Jerry’s handprint with a bolt through the center, in red, white, and blue. The friend that’s getting a shirt like this one, liked it so much he had her make one for his favorite cup.