It's not about being forbidden, it's about all the meaningful work being automated. Sure, anyone in an ideal post-work world would be able to pursue whatever hobbies or interests, but work wouldn't be the same for humans, as nobody needs a person to work.
In a heavily automated world, you won't be able to get a job building widgets for Ford or IBM - but you will always be able to make hand-made furniture. There may not be jobs for security guards, but there will always be jobs for nursing-home attendants, and school teachers. If you WANT to work, there will always be meaningful things you can do.
"All meaningful work" going away is pretty unimaginable to me. And if that's what you're imagining, then IMO you've gone way past the realm of reasonable speculation and into fantasy.
