Tend Tattoo Table Not Working

Whenever I try to get my sim to tend the tattoo table, he just goes on his phone or starts reading a book. I've tried doing this both with and without mods and it doesn't seem to work no matter what I do. I've also tried making sure the areas with the tattoo tables are set to public (it's a small business) but that doesn't seem to make a difference. Does anybody have any solutions for this?