How Come The Roman Catholic Priests Cannot Marry?

Priests and even Popes used to have concubines and even children (Lucretia de Borgia-sp? was the daughter of a Pope) Monks, nuns and Priests were known throughout history to have unwed and even children - often fostered out after the birth when it was a nun's child. There's an old joke about the Pope going to the Library in Heaven and crying out in anguish when he discovered that someone forgot the "R" - it was supposed to be CelebRate, not Celebate! I love that one - and believe that a Priest and spiritual representative can't truly know their "flock" unless they can empathize in some way when it comes to family life - and to be honest, I don't call chocolate for the altar-boy a spouse, just doesn't count.......and a Priest simply can't know what marriage involves never having walked that path - Pastors are another story, however, and I tend to have more respect for the Paths that do allow women to officiate and that allow their ministry to marry and have families. Their ministry tends to be more well-rounded and can relate to their "flock" better - but that's just an observance from one who used to go to every church possible in a quest for the church that was the right fit - and though none ever truly fit, I do respect the more well-rounded ministries MUCH more. Human nature and all.....