I’m not sure the interests themselves are hereditary but certain aspects of IQ could be. So say I have a great spatial memory that allows me to rotate objects in my head....I might be more for puzzles [emoji3456] or fixing cars where I can see parts coming together easier than my peers. Let’s say my visual memory is top rank, then I might like to paint. I personally think we gravitate to things that are easy for us in our hobbies.