Weed-wacker for hedge trimming

I'm in awe of the friends of mine that are transitioning household chores to their kids.  I occassionally get mine to clean their rooms, perhaps even vacuum and dust... but that's only after asking 3 times.  A neighbor of mine has her kids not only doing chores at home, but distributing flyers to do chores around the neighborhood... for a fee, naturally.  That's the kind of parent I thought I'd be, and I know there's still a chance.  So, as I was using the weed-wacker today in the yard, around the sidewalk and beds, I thought, this is something that eventually the kids could do... Then, I noticed that the hedges also needed trimming, so I simply hoisted up the weed-wacker and took care of the hedges as well.  This is not something that I think my husband would approve of.  In fact, if my kids ever do use the weed-wacker, and I see them attacking the hedges, or anything above ankle height,  I'd likely yell at them...'what are you thinking?'  If, however you choose to try it, it does seem to work just fine.