While I understand what you're saying, his deliberate choice is a form of self control.
"I don't have home internet" is more of a stand-in for "Removing the distraction of the internet is a working form of self control for me" than for "I don't have self control".
"I don't have home internet" is more of a stand-in for "Removing the distraction of the internet is a working form of self control for me" than for "I don't have self control".