President Obama on Monday defended San Francisco 49ers backup quarterback Colin Kaepernick’s decision not to stand during the playing of the national anthem.

“[H]e’s following his constitutional right to make a statement,” Obama said at a press conference in Hangzhou, China, responding to a question about the quarterback. “I think there’s a long history of sports figures doing so.”

The president added, “I don’t doubt his sincerity. I think he cares about some real, legitimate issues that have to be talked about. And if nothing else, he’s generated some conversation around some topics that need to be talked about it.”

Kaepernick has refused to stand for the pre-game playing of the national anthem, citing racial injustice and the oppression of minorities in America.

At Monday’s press conference, Obama reiterated his call for an “active citizenry” and praised the 28-year-old professional athlete for speaking out: “I would rather have young people who are engaged in the argument and trying to think through how they can be part of our democratic process than people who are just sitting on the sidelines and not paying attention at all.”

Obama didn’t encourage standing for the playing of the national anthem, but signaled that others might not respect Kaepernick’s move.

“I think there’s a lot of ways you can do it. As a general matter when it comes to the flag and the national anthem and the meaning that it holds for our men and women in uniform and those who fought for us, that is a tough thing for them to get past, to then hear what his deeper concerns are,” he said.

But the president said: “Maybe some of his critics will start seeing he has a point around certain concerns around justice and equality.”