I searched for studies and found this

https://www.militarytimes.com/news/your-military/2020/04/27/studies-tackle-who-joins-the-military-and-why-but-their-findings-arent-what-many-assume/

I would have thought this to be propaganda as it gives positive reasons, 90% of the time, as to why people join the military, such as, "adventure", and "patriotism".

I was wondering if anyone else had some studies which conflicted this, or even confirmed this view of things.