Originally Posted by Just one more
She was given an arc reacter in her chest as she was hurt by someone who came to kill tony and destroy what he cared about.
The suit of armor was designed to protect her in case this ever happened again. For some reason you think that would be "dumbass" and she should remain unprotected.
Everyone in Stark's organization --- hell, everyone Stark's ever known --- has had their lives threatened (and even taken) by Iron Man's enemies. Tony never saw fit to build suits for them, either.