There could be. Fanfiction is a vast world full of different interpretations. In some fanfictions, the author might decide to have Harry Potter drink alcohol as a way to show his character development into adulthood or to explore how he deals with stress in a different way. But this is a deviation from the original portrayal of Harry in the books, where he is mostly focused on battling Voldemort and growing as a wizard within the rules and values of Hogwarts.
Sure. There are fanfictions that might include Harry Potter drinking alcohol. Some fanfic writers like to take the characters and put them in more 'grown - up' or alternative situations. But these fanfictions might not be in line with the general spirit of the original series which is aimed at a wide range of audiences including younger readers. So, while they exist, they may not be as popular or widely accepted as more 'canon - friendly' fanfictions.
Chapter 312, "Charity Gala Invitation", is the clearest early answer because it turns Wen Jiaojiao's situation into a concrete plot event.
Chapter 27, "Signing Jiang Yan is fine, but you have to follow along too.", is the clearest early answer because it turns Ming Feng's situation into a concrete plot event. It opens with They had spent an entire year gradually inviting a few people.
Chapter 551, "Who is Reciting "Student Rules"?", is the clearest early answer because it turns Reciting's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Other competitors were already in place, and Qi Tianyu was the last...
Chapter 127, "He's Not Snobbish, Just Simply Bad-Tempered", is the clearest early answer because it turns Wen Jiaojiao's situation into a concrete plot event. Early on, Witnessing Jiang Li leave with a bucket, Jiang Yan refused to admit....
Chapter 152, "A Man of Many Talents and Wealth Draws People Near", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event.
Chapter 89, "Brother He, how can you be so unreasonable too?!", is the clearest early answer because it turns Shu Yan's situation into a concrete plot event. It opens with Director Sun took a step back, "What's the rush?
Chapter 239, "Although he's cheap, he's also stupid", is the clearest early answer because it turns Wen Jiaojiao's situation into a concrete plot event.
Chapter 10, "All for Wiping Your Butt", is the clearest early answer because it turns Jiang Group's situation into a concrete plot event. It opens with Qiao's shocked face struggle to recover, Lin Manru also tasted for...
Chapter 332, "Start the Live Stream!", is the clearest early answer because it turns Music Domain's situation into a concrete plot event. A useful checkpoint is the way the scene starts with His hands shaking, Jiang Shixu reopened the video.