Why does the phrase "ignorance is bliss" upset some people?

Anonymous
I have the word 'ignorance' tattooed on my wrist and the other day this guy complimented me on it but asked what it read (its facing me, he couldn't read it upside down) but when I told him what it said he got upset.

Ignorance can be used in different contexts, mine being that what you don't know, can't hurt you.

other people see it as you'd rather be stupid. why is this?

Everyone is entitled to their own opinion, so please don't get offended and try and tell me "ignorance is not good, you shouldn't live that way, blah blah blah" I've heard it all before.

I just want to know why it offends or upsets some people.

Why does the phrase "ignorance is bliss" upset some people?
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