The difference between a child psychologist and a child psychiatrist is important to understand. Child psychologists are doctors trained to diagnose mental and behavioral disorders, and can provide therapy and counseling.
Not all lectins are bad, but some are (or at least, can be). A subset of lectins that can be found in large concentrations in the seeds of grasses (i.e. grains) and the legume family do have some properties that can make them very problematic for human health, namely that:
Although all foods contain some lectins, only about 30% of the foods we eat contain them in significant amounts (3). Legumes (including beans, soybeans and peanuts) and grains contain the most lectins, followed by dairy, seafood and plants in the nightshade family. Their function in plants is not clear, but they may have evolved as a survival mechanism.