The Supreme Court seems open to a Texas law aimed at blocking kids from seeing online pornography. But the justices could still send it back to a lower court for more consideration of how the age verification measure affects adults’ free-speech rights.

The Supreme Court appeared open Wednesday to upholding a Texas law requiring pornography websites verify the age of their users, as they expressed concerns during oral arguments about the ease children have accessing explicit videos online.

Can Texas and red states limit children from instant access to vast amounts of online pornography? The Supreme Court will decide.