Okay! Here's how I’d explain your "job" as a wealthy long-term NEET on government bux to a five-year-old:

"So, imagine if someone didn't go to school or work every day like most grown-ups do. Instead, they stay home, play games, read books, watch fun shows, and do whatever they like all day!
And guess what? The government gives them money to help them live, kind of like an allowance! And they already have lots of money saved up, too — like a big treasure chest — so they don’t have to worry about buying snacks, toys, or paying for their cozy home."

"It’s kind of like being on a very long vacation, but all the time!"