RE: Is 32lbs. enough to hunt deer?
Everything will have to be absolutely PERFECT. There is no room for error. You will need to be there with him to tell him whether or not to shoot. He will be tempted to fling an arrow at the first deer he sees. Also:
1. Pick the HEAVIEST arrow you can find. Consider adding weight tube inserts inside a carbon arrow.
2. Limit shots to 15 yards and broadside.
3. 2 blade, cut on contact broadhead in at least 125 grain and 1" cutting diameter.
The key is momentum for slow bows. The only way to get the momentum at 32lbsis to go HEAVY. Try to get his total arrow weight to at least 500 grains. More would be even better.