I have social anxiety issues, but they are under control now and have been for a while through therapy and medication.
If Simmons issues are due to the anxiety if returning to an environment where he needs to face certain people, I can understand that.
But....
Those anxiety issues will not magically disappear right away, even if he changes teams. That's not how the crippling effects of anxiety work, especially if he isn't addressing the issue with some combination of therapy and medication.
That he is healthy enough to go to the Philly facilities and put in some practice work with some people there, tells me a bunch of this might be performance anxiety and not social anxiety. And again, he would still need to perform wherever he was traded to, so that won't be some magical panacea to getting back onto the court.
If Simmons is traded and immediately is playing, I am calling bunk on his mental illness. Anxiety that causes you to not be able to work doesn't disappear immediately just from changing workplaces. That simply is not the way any mental illness works. You don't just, coining a popular stigmatic phrase associated with mental illness, "snap out of it".