What is the meaning of 1 Corinthians 9:7?

* The two F.O.G. Bibles & Commentary below are currently a work in progress.

Who serves as a soldier at his own expense? Who plants a vineyard and does not eat of its fruit? Who tends a flock and does not drink of its milk?

Berean Standard Bible (BSB)

What soldier ever serves at his own expense? Who plants a vineyard, and doesn’t eat of its fruit? Or who feeds a flock, and doesn’t drink from the flock’s milk?

World English Bible (WEB)

Who{G5101} goeth a warfare{G4754}{(G5731)} any time at{G4218} his own{G2398} charges{G3800}? who{G5101} planteth{G5452}{(G5719)} a vineyard{G290}, and{G2532} eateth{G2068}{(G5719)} not{G3756} of{G1537} the fruit{G2590} thereof{G846}? or{G2228} who{G5101} feedeth{G4165}{(G5719)} a flock{G4167}, and{G2532} eateth{G2068}{(G5719)} not{G3756} of{G1537} the milk{G1051} of the flock{G4167}?

Strong's King James

(7) Whom, ever, waged war at his own wage? Who plants a vineyard and doesn't eat its fruit? Who shepherds a flock and doesn't eat of the flock's milk?

The F.O.G*

[7] What soldier serves at his own expense? What farmer doesn't eat from his vineyard? What shepherd doesn't drink milk from his flock?

The F.O.G Paraphrase

who doth serve as a soldier at his own charges at any time? who doth plant a vineyard, and of its fruit doth not eat? or who doth feed a flock, and of the milk of the flock doth not eat?

Young's Literal Translation