Miguel didn't bother telling anyone he was leaving. The least amount of breadcrumbs on his trail was for the best. That way there would be no one following him to his paradise. Miguel only wants to move forward with his life, get all the experiences he can from it, and have a great time while doing so. All the rest is dogmatic rhetoric as far as he is concerned. Anyone who thinks they know it all is a dangerous person, and unfortunately the world is full of the nutty assholes. Some wear white collars, some have guns on their hips, some wear fancy suits and make false promises, and some are living and breathing right next to you at any given moment.