My grandmother always wanted her grandkids to read. My sister and I read a lot, even as children, but not the books she thought were "quality children's literature" (e.g. Thea Beckman) but we both preferred mysteries and scary stories (Griezelbus!).
When I started reading adult books I immediately started reading mostly English books and Stephen King was my favourite. My grandmother didn't know how to react when I read
It in a week during the summer holidays. On the one hand I was reading adult books, in English and long ones at that, on the other hand it was horror and not Quality Literature. In the end she decided to ignore the facts that I was always reading thrillers, horrors and mysteries and focussed on the English and long part
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My grandfather, on the other hand, didn't care what I was reading as long as I was enjoying myself. He always made sure my sister and I got book gift card for our birthday and Christmas instead of books picked by my grandmother which we wouldn't read.