Care and Feeding is Slate’s parenting advice column. Have a question for Care and Feeding? Submit it here .

Dear Care and Feeding,

In the ‘70s and ‘80s, my learning disabilities were undiagnosed, and I was the “stupid” one in the family. As an adult, I know myself to be very intelligent, but my siblings never realized this, and they have passed on their attitudes to their school-age children.

The kids do not believe me when I speak to them about current events or anything fact-based. When they ask an adult at large to spell something, and I reply, they check my response with another adult. I told one of them a medical fact, and they told me flatly that their parent was much, much smarter, and their parent said otherwise, so I must be wrong. (The fact that I do not work due to

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