So, being someone like a Fireman or policeman is useful in life because we always need some of these people willing so sacrifice themselves for others to protect others. However, for long term survival often a choice not to be a policeman, Fireman, or soldier might be the best choice if you actually want to live to be 100 years old in the first place. Why?
Because PTSD from what you are going to see (which might be interesting) tends to shorten people's lives in these trades because of the harshness of what they often have to deal with. They have to watch people die and kill themselves and die through accidents almost every day of their working lives which is hard to deal with. This is why all Police and firement and likely Soldiers have counselors now when PTSD triggering events occur when people die especially around them.
I know someone whose police partner in New York City was killed and he has obvious PTSD still from this even though this is likely now 50 years ago or more. His solution was to move way out in the country and buy land and build a house but it is still obvious how harmed he was by his police partner dying in the line of duty.
So, being self aware enough to know what you can survive long term is important to long term human survival always. Though these professions might be interesting they are all "Soul Killing" for most people in how it affects their wives and children and relatives and friends.
To not understand this is to be ignorant as to what seeing all this kind of stuff is going to do to you.
However, I also understand because I didn't believe I would live to be 25 either (even though I didn't choose any of these professions. However, since my father and grandfather and one of my uncles were Electrical contractors dealing with dangerous things they were doing every day is in some ways the same thing as being a policeman or fireman or soldier in some ways too. So, almost anything you are going to do that is physical in your job or profession is going to harm you in various ways too or. potentially could harm you.
For example, I watched my father break his wrist from falling off a 30 foot tall extension ladder as an electrician and have to spend 6 weeks not working until his broken wrist healed enough to work as an Electrician again.
And working with my father I fell about 15 feet off a ladder while working as an electrician into a pile of lumber and couldn't breathe right for about 5 minutes or more because the fall knocked the wind out of me. Also, I have to wear hearing AIDs partly from shooting 22 shells into Cement Walls as a 12 to 15 year old summers with my Dad strapping electrical pipe to cement walls in Warehouses too. The Device was a gun like thing that literally shot bolts into walls to mount the straps that held the electrical conduit to the walls.
So, living a long time is mentally being aware more of your needs and the needs of those around you because if you aren't functioning right often you die or are maimed AND if you are not caring about those around you often they are going to die or be maimed too.
So, in some ways life is a battlefield and without a good strategy NONE of us survive very long.
