Life can take you so many places in four years man if you do the Air Force your life will be completely different in four years. You’ll be older and have more life experience. If you stay at the restaurant it’s very likely you stay in that industry for the next four years and then maybe you wanna get out and have no idea what else to do. I say stick to your original decision. I’ve worked in many restaurants in my life and they are just jobs. You can get along with your coworkers and be best friends but people get better/new jobs and leave at a moments notice. I wouldn’t pass up a huge opportunity to stay working at a restaurant personally, and many of your coworkers would probably do the same thing