The first was a group of 3 boys aged around 16. They wore school uniforms. They were quite engrossed in the conversation about sports at school. They were trying to pick out some chips and salsa and dropped some on the floor. None of them made any attempt to pick them up and put them back. They grabbed some soda and proceeded to make payments. The cashier said hello and none of them answered her. One of them paid in cash, they stuffed their items into their backpacks and left. The second young person observed was a woman in her 20s. He walked around picking up random objects. She looked a little confused in the cereal aisle as she looked from shelf to shelf. There was an associate right behind her who asked her if she needed help and she said a quick no thanks and turned away. He finally got something after a few more minutes of searching. She went to the self-checkout, avoiding any interaction with any cashier. According to Metro's observations, 100% of seniors were polite in conversations. The second subject observed, the oldest of all, demonstrated that over time he had built friendly relationships with some operators. Young people scored 0% in terms of politeness. Compared to older people, they seem to avoid conversations