My twins are 12yo now, and honestly, there is so much else going on with them that it seems like less of an issue than when they were little. But when they were younger I bit my tongue sometimes to avoid blurting out things. It is hard not to tell everyone that your freshly turned 2yo is a reader!! We did share very selectively, but I have no regrets now about not sharing more widely - partly because I don't want the kids themselves (or others) to think their innate ability is what I appreciate/value most about them.