Seems to me we are programmed in this culture [cult-ure -- a conditioned mindset] to only spot what we feel needs fixing in ourselves and others and not what is good, positive, helpful, or what we are grateful for. Is it because we just don't have the language?
Here's some words to use when someone really displays a positive behavior that you wish to encourage further.
It is my wish these words benefit your connections with others. Can be used safely with all ages.