What is a DINK couple? why this relationship trend faces backlash

The term DINK has gained popularity following an American couple's online display of their lavish lifestyle. Lilly and her husband Evan, shared a light-hearted video on TikTok discussing their contentment with "happy DINK life." They humorously emphasised their ability to relish lavish outings, extravagant dining experiences, and unlimited food shopping, attributing it to being "DINKS."