Actually, Jesus request wasn't that natural at all, in His day. Jesus crossed a taboo boundary. AND he was talking to a woman in public, another social taboo. This is an act of grace. Grace is about caring for someone you're not obliged to help.
Grace is about reaching past the barriers and taboos to help.
Grace is about giving something to someone even though its not their right, or they haven't earned it. Grace is about giving even at personal cost. Grace is the active expression of God's love, given abundantly, selflessly, joyously. Jesus said in grace God extends his love to us like a parent does to one's child. Let's stay with that image for a moment to help us understand grace, especially on Mother's Day.