Some NBA players are very communicative with the reporters and often have an excellent two-way dialogue about various topics. Most of them are connected to basketball and the game in general, but sometimes they can be related to some personal questions. Even though the players themselves often share a lot about their daily routines, Russell Westbrook is one of those superstars that don't like news reporters and is not afraid to tell them he doesn't want to interact with them.
Fred Katz is a news reporter for the Washington Wizards who didn't have much luck speaking with Westbrook about anything other than basketball. In one of his recent tweets, he said he asked Westbrook what he usually did on his off days, after which he received a cold-blooded response to mind his own business.
Jovan Buha is another reporter who works for the Los Angeles Clippers, and he asked Kawhi a similar question on how he spent Christmas Even at home. Kawhi, in his fashion, replied it's a private matter he doesn't want to discuss with the journalist.
Some players are more protective of their privacy these days when it's incredibly hard to do so because of all the social media. Whether they are obligated to answer reporters' questions or not is solely up to them. They are compelled to answer any questions related to the team and the game itself, but personal topics are something they have the option of whether to answer or not. Some players and reporters know each other for years, and they have a more open relationship. Still, a lot of players often got burned with people from the media who published a piece of information that was untrue, or the facts were twisted.