I hired someone in the UK who was obligated by law to divulge a crime that she has committed more than a decade before, because she would be interacting with my children.
It was grueling for her to discuss it -- she was trembling and wringing her hands, and it was suddenly obvious why she had been strangely nervous during the entire first part of the interview -- and difficult for us to sit and hear it; not because her crime was awful (her punishment did not involve jail time) but because she was clearly being put through the wringer.
Honestly, it was a factor in us choosing to hire her; otherwise she was fairly even with the other candidates we interviewed, but we were impressed that she was going into a line of work that would require her to make this same confession to strangers many, many more times in the future.
It felt really wrong, regardless. Especially after that experience, I think there should be an expiry date for mistakes like hers.