My husband and I just bought a kilo of tilapia a while ago. We love eating fish specially the one I mentioned. My daughter asked why we always have to eat fish at least twice or thrice in a week. I told her it is because fish contains essential fatty acids which are good for human consumption. I also "educated" her slightly on the benefits of duet dha which is good for developing babies. I told her that when she was still a baby, I always fed her and at the same time, consumed fish meat for brain and eyes development.
She was amazed. I think she will not mind having fish like salmon, herring, trout and other oily fish in her added on her regular meals.