Things I don't like are celery, parsnips, basil, rhubarb, gooseberries and avocados.
I did give them all ago in order to find this out and didn't just point blank refuse them, you can add radishes and olives to that as well.
Yes they are and fussy about everything else as well.
It pisses me off how mum panders to them all the time.
If I didn't eat what was prepared for me as a child, then I would go without.
Much of the time we couldn't afford meat etc. and regularly eat lots of veg, especially the ones we grew in...