I could not care less if I EVER play left handed. (Except for maybe the left handed challenge to get a badge on this forum... but that only requires one swing.) So, I'll take option 2... But in reality I hope to do better than option 2.
Would you rather...? #19:
Be able to play golf as well as you do now BOTH righty and lefty, for the rest of your life… or… Reduce your handicap by 25% relative to +4 (i.e. an 18 is 22 strokes away, so 5.5 strokes) for the rest of your life?
I'll go with #1 for those two times a year my ball is up against a tree and I need to swing opposite-handed. Just kidding... #2.