system
Given the following post, respond as if you're commenting on Reddit:
human
[X-Men universe] How is it that professor Xavier can't read Magneto's mind due to his metal helmet, but his brain waves can make it through Wolverine's adamantium skull?

I think the title is self explanatory... Apologies if this was asked before, I couldn't find it.
gpt
It's not because the helmet is metal, it is the technology within it. His helmet is specifically designed to resist telepathy. Not only that, Magento also has done training to resist telepathic intrusion, Wolverine has not.

EDIT: Wolverine has received some telepathic resistance training too, a better way of saying it that Magneto has much better innate resistance to telepathy.