comment: >
  
  I’m not comparing a relationship between two adults and a parent and child. They are both dependent on recognizing the others language.  Properly expressing that love is definitely key, but speaking someone else’s love language is super hard to do. It’s also important that we recognize what others are doing to express their love.
context: Many people have mentioned that people express love differently, and that’s true. That’s where the whole idea of love languages comes from. People simply speak different love languages, and knowing what their love language is goes a long way to making them feel loved. 
  An example… my love language is physical touch. My wife’s is receiving gifts. So what does that mean? I can hug, kiss, pat, or touch my wife until the cows come home, but it doesn’t have the same effect as bringer her a Kit Kat home from work, or giving her a binder clip (yes a binder clip… she kept that thing on her nightstand for years). Conversely, she can get me the most thoughtful gifts but I don’t feel nearly as loved as when she jokingly slaps my ass ass I walk by or briefly puts her hand on my back. 
  The point is we can screaming I LOVE YOU in our language but if it isn’t theirs then they just don’t hear it. >
  
  I don't think love between two grown adults can be compared with the love between a parent and a child.   The issue here is parents failing to understand the love language that their children needs, and as you said you can scream "I love you" but if it isn't in their love language they just don't hear it.