A simple google search for the "last king to die in battle", says (bbc uk)," The last king to die on the battlefield in Britain was King James IV of Scotland at Flodden 500 years ago." That was a long time ago.

I understand that britain does not represent the entire world and it is not black and white, but there has to be a shift in the trend i.e., majority of kings where not leading from the frontlines.

Which raises the question why did this trend start ?

A bit of background to clarify where I am coming from:

I am pursuing the hypothesis that ,"this shift (if true) was a major factor in shaping our recent past and current politics". As in, I feel( yes ,"feelings" , not a way to frame/prove hypothesis),that the leaders went from "what can i do for my people(or tribe) " to "what the people can do for me?"

I somehow feel(again,"feelings") ,kings leading in battle and their relationship with the subjects are proportional(?).

I shouldn't be forming hypotheses of any kind without sufficient data to back it up. This entire premise might be completely wrong and kings/politics might have never worked this way. I am sorry if I am completely coming off as an idiot( i am an engineer never took history/politics seriously).

It would be great if you guys shed some light on this. Any literature(I am comfortable in reading academic literature) would be helpful.

Thanks