You know that line from The Prophet (1923) by Kahlil Gibran (1883-1923) about children; it goes something like: "your children are arrows shot from yourselves. Do not try to make them like you; try instead to be like them. Something like that. Now I'll look it up....

You may strive to be like them,
but seek not to make them like you.
For life goes not backward nor tarries with yesterday.

You are the bows from which your children
as living arrows are sent forth.

Well, that's not great, but I had the right idea. Anyway, I'm talking about grandchildren. No way you can strive to make them like you (in both senses of the word). There are so many more genes went into their DNA that you're lucky if you see even a passing resemblance to you or your mate. But their achievements are a wholly gratuitous blessing. You had nothing to do with their accomplishments but you can be proud all the same. And very grateful.