Many of my friends seem to think I live, eat, drink and breathe politics.

Not true. I actually have a life outside of the political world. Still, I enjoy the give-and-take of political discussion.

This morning a friend of mine and I were talking about the presidential race. The conversation turned to Bernie Sanders, the independent U.S. senator from Vermont who’s running for the Democratic nomination.

“Why do young people like him so much?” my friend asked.

I haven’t given it that much thought as I’ve watched Sanders chip away at Hillary Rodham Clinton’s one-time inevitability as the Democratic nominee.

Then it dawned on me as my friend posed the question: Sanders has a grandfatherly appeal.

Back in the very old days, when I was a twentysomething idealist, I joined an army of young voters who supported the late Sen. George McGovern. His campaign centered on a single issue: ending the Vietnam War.

By 1972, the war was still raging. My own interest in the war was a bit different from many of my peers. They faced the prospect of going there. I had been there and returned. I came back after my Army stint as confused and confounded about our mission in ‘Nam as I was when I went over in the spring of 1969.

Sanders’ appeal to young voters today — more than four decades later — is a bit more elusive. I have trouble understanding his economic appeal, but then again, maybe it’s just me; I might be a bit slower on the uptake than I used to be.

I’ve concluded that perhaps a lot of Sanders’ appeal rests on the fact that he’s a bit longer in the tooth than any of the other candidates running for president this year — although Clinton isn’t that much younger.

Hillary Clinton faces an authenticity challenge. Sanders doesn’t. He seems to be precisely how he presents himself: a loveable curmudgeon.

I’ll admit that I haven’t talked to that many young people about Sanders’ candidacy. Another young friend with whom I’ve recently gotten acquainted asked me this morning about Michael Bloomberg — the former New York mayor who’s pondering an independent/third party candidacy for president.

I haven’t a clue what would drive a Bloomberg candidacy, other than be a spoiler, I said. He, too, is an older gentleman. Would my young friend support Bloomberg because he reminds her of Grandpa? I might ask next time I see her.

Yes, this election season is the most unconventional many of us ever have seen. This fascinating love affair that Old Man Bernie has developed with younger voters just might be yet another result of the unrest that’s gripped so many Americans.