Serena Williams and Alexis Ohanian are letting their daughters chart their own paths — with one caveat

Alexis Ohanian says he and Serena Williams aren't limiting what their daughters can pursue.

Kate Green/Athlos/Getty Images Alexis Ohanian says he and Serena Williams are letting their daughters choose their career paths.

But he says there's one thing they want their daughters to keep in mind.

The Reddit cofounder also shared the lesson he hopes his daughters take from women's sports.

Alexis Ohanian says he and Serena Williams have one rule for letting their daughters chart their own paths.

"The one rule in the house is we don't care what you want to do when you grow up, as long as you do your best at it and you're doing something useful," Ohanian told E! News on Saturday at Athlos LDN26, the inaugural London edition of the women's professional track-and-field series he founded.

Ohanian said he was on "dad duty" supervising their eldest daughter, Olympia, who was "working the event." "We've got her interviewing a few of the ladies who are on their way in," the Reddit cofounder and venture capitalist said.

On the other hand, he said Williams "drew the short straw" and was watching over their youngest daughter, Adira.

Ohanian said the couple also tries to keep their daughters grounded as they grow up around elite athletes and attend high-profile events.

"We both go out of our way to normalize a lot of this stuff," Ohanian said.

That same idea shapes how Ohanian thinks about women's sports and the example he wants to set for his daughters.

While he sees women athletes as inspirational role models, he said that shouldn't be the reason they are celebrated.

"In a way, sort of ironically, if the only thing that I focus on and talk about is the sort of normalcy of celebrating greatness, and they just happen to be women, I feel like it actually helps us get a little closer to the end goal that we all want," he said.

Ohanian has previously spoken about giving his daughters room to explore their interests.