Insects being disgusting could also be a learned response, kids are pretty willing to pick up and touch things they haven't seen before including insects. Howe

Insects being disgusting could also be a learned response, kids are pretty willing to pick up and touch things they haven't seen before including insects. However they look to their parents when doing it, or about to do it and are generally quite good at picking up on even subtle facial clues. Since kids can easily be 1 or 2-shot learners about stuff like this it's very difficult to separate innate from learned.