I don't think anyone is stopping him from disclosing himself to the public. He created bitcoin, so definitely, he will find a way how to reveal himself if he wants to. We don't know the reasons, but I guess, let us just leave it that way. Be grateful, we are enjoying the benefits of his invention.
We know the reason...he wants to live a peaceful life with all the money he’s got. They say when you have a lot of money, your life is at risk, either from getting robbed or worse, getting killed. Satoshi doesn’t have to deal with that kind of fear despite owning a huge amount of Bitcoin because he chose to stay anonymous. He’s probably enjoying life to the fullest without even needing to work, living the best life possible, especially if he’s in good health.