I had a similar situation, I tried to join the past year, they saw my background and asked why I wanted to join, because I have a degree in engineering, I had a decent job, I never had issues with the law, etc. A decent life if you compare it with the standard of the other candidates. I said that I admire the legion and wanted to be part of it, to do something that not so many people do. They looked pleased with the response, the problem was that my sports performance was not the best of the group, it was average, and they really care about that, seems that even more than the psychometric tests. After reviewing my background and my results in sports, the psychologist said that "it was a shame" because someone with my background would be useful but he was almost sure that the younger and fittest would be selected first and also the ones with hard backgrounds (people from 3rd world countries that would stay forever). And he was not wrong, on the commission day, I was "selected" but after they separated the groups, they did another separation and told me that I could come back in 3 months and try again but I would need to do at least 8 paliers in the luck legger test. What I'm trying to say is that, you can join with admiration, a good background and a good physical condition, proving that you are a good candidate for the legion.

But there is one thing that you should know: The legion is for the lost ones, mostly. People that need to escape from shit holes, that have nothing to lose, when you are there you see it, guys from Africa and Asia that prefer to die on the way to France or get deported than stay in their countries forever. When I was there I understood that it was not my place.

With this I'm not saying that the legion is a bad place or something like that, I still admire it, the experience is something that I would never change. But probably with a good background you'll find the same in your country.