Answer: Thorns are modified stems that are short and come to a sharp point. Removing them would be similar to removing stems and branches. The only cautions involved are that 1) if you cut them off, you'll be providing lots and lots of wounds for disease entry, and 2) the plant will expend a great deal of energy healing the wounds. This energy would otherwise go into producing new foliage.
If it were my plant, I'd leave the thorns and simply approach the plant with caution, knowing it has thorns.
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