

What’s there to understand? It’s not like magic or people with magic are from call of cthulchu rpg and damage sanity from interaction, they are as normal as you can get I don’t think you can make magic any more boring and mundane then it is in Harry Potter.
I mean, yeah, your points are valid as long as you squint hard enough and disregard some cartoonisly evil shit.
Someone with a gun can just murder you outright with you having no way of defending against it. It doesn’t make guns something that’s beyond understanding. Same with anything that can damage another person.
Why would they need to keep secrecy and who exactly is going to get them into psych? People can deal with a child, and magic in harry potter universe is reversible and not permanent for the most part. There are multiple new families with magical children every year and they don’t recieve any guidance as well, yet they manage somehow without being assholes for the most part.