I appreciate you taking the time to share your ideas on my question, thank you. I can definitely agree that, even today, we are constantly focused on youth and you are correct; companies are finding ways to make a profit from this.
However, my main line of argument here is simply to do with whether the obsession Gray shows can be likened to man's obsession today. In the novel, we see Gray turn to murder and corruption which can perhaps be described as a far more exaggerated obsession than the one we see in everyday life.
Another point I would welcome any input on (if it is of interest to you), is whether or not Dorian Gray is obsessed with a lot more than just youth. Perhaps it is about what youth represents? Is this something that applies to man today? Are we solely focused on just looking youthful or does it mean more?
Once again, thank you for your feedback!