Based only on the music posted on here, I’d guess the average age of regular Dockerland posters is about 50. I’m not sure that a promo containing emojis and featuring Australian hip hop music* is targeting that demographic, and I’m less confident that anyone on here would have any clue about what the kids are into (while wearing a polo or otherwise).
*By way of background, hip hop music, also known as rap music, is a style of music which came into existence in the US during the mid-70s, and became a large part of modern pop culture during the 80s. It consists of two main components: rapping (MCing) and DJing (production and scratching).