Overcoming "Mage Only" Enchantment limitation

[David Johnston2]

Originally Posted by TroyGuffey

Way too many items have "Mage Only" listed in the suggested Item of spell in "standard" GURPS Magic.

Why is that so? Is the Magery advantage needed to control them?
The question then becomes how to compensate for that problem.

Would an Enchantment-only version of Mind-Reading work?

The assumption is that spells that require magery to cast, still require magery to cast when cast through an item. That limitation could be inherent to the spell, or just because mages create items like that for their own use, not to put themselves out of jobs by letting anyone do it.

In any case, GM's are free to introduce any nonstandard spells or items that revs their motor. Have a party.