I wonder... (Part 1)

• ... why do people always have to scream and shout in concerts? They don't get to hear what the ''artists'' on stage are singing/playing (for what they've payed so much money) and all what they end up with is a headache.
• ... why do teachers forget that they were students themselves someday? That would help them to understand what we students have to go through.
• ... why do grown-ups forget that they were teenagers themselves someday? That would make it easier for their children to tell them everything and to avoid any secrets in a family.