The New Territories are not really that far away from Central Hong Kong or Kowloon, especially with the efficient local transportation system, but they're worlds apart when it comes to nighttime entertainment. Visiting the New Territories can open visitors' eyes to another, more tranquil side of Hong Kong.
Still, there are places in the New Territories where people can go for drinks after work or to hang out over the weekend. Such places include Kwong Fuk Road and a few other lively roads near Tai Po Market Train Station. Also, if you visit other parts of the New Territories like Sai Kung or Tsuen Wan, you can always find some friendly bars to drink and socialise in.