Yes, as everyone knows, the crossbow bolt is quite similar to the .30 Cal. bullet.
What, are you a comedian or something?
Mechanics, young man, not terminal ballistics (or external ballistics for that matter.
Yes, indeed, mount stock to shoulder, sight down centerline, pull trigger. Exactly the same as a rifle, nothing like a bow. Mechanics.
Before someone else jumps in my crap, I never expressed anything that could be construed as being against hunting with crossbows. What I said is, if the purpose is to get him used to bowhunting, it doesn't. It gets him used to rifle hunting, albeit at short range. I also said to check the local laws, as it's not legal to hunt with crossbows except in general gun season IN MANY STATES. IF that was the case where he is hunting, then it would only limit WHEN he could do it.
Personally, if the choice is between him hunting with a crossbow and not hunting, I'd say get him the crossbow. If the goal is to get him more used to bowhunting, my suggestion was to get him a lighter bow to train with. Again, in MANY states, small game and varmints can be hunted with bows under 35 pounds.
So, since the cheap bows don't cost much, there's no reason he couldn't go small game hunting with his son and still be able to get him a crossbow for deer hunting.
Besides, crossbows are also a hell of a lot of fun.