I’m more curious about why you don’t see a distinction. Can you show me the usage of “begs” to mean “raise” in any other situation?

Do you raise children? Do you raise concerns? Do you raise animals? Do the Amish raise barns?

Can you say “begs” in any of those situations?

Do you see a street beggar or raiser? Beggars can’t be choosers, why can they be raisers?