Hard headed or strong minded Sometimes when you go into the military you need to be both. Going into the military affects you physically and mentally, it’s not an easy thing to do and it’s not for everyone. Some people known from early on in their life that want or are made to go into the military or the navy. While others parents kinda push them to go into the military or some type of service probably because they did and their parents did and they want the tradition or service to continue on.
Although some people join for expenses. For example full medical coverage for you and your family. Once you join the military and you become a member you receive immediate full health benefits for themselves and their intermediate family; not your long distance step cousin.
Another example would be college or skills and training. The military provides advanced technical training in variety of career fields. Also many military members are able to attend college that is usually paid for by tuition assistance. Some people go straight into the military after high school because they can’t afford schooling and need assistance so they join and receive the tuition assistance.