It helps people like who suck at games and get hopelessly stuck sometimes, I suppose.
But yeah, getting led by the hand can be a bit annoying. Thankfully it's not really something you see in the dungeons of the newer Zelda games, which is often where the challenge lies. And I've still not played the two old ones... I can't get over the whole "God, these are old, old school factor". Maybe once I'm done with Majora's Mask...