Dad guilt about not being present enough

My 9yo asked me why I'm always looking at my phone and I realized... he's right. I AM always looking at my phone. Work stuff, scrolling, whatever. And when I'm actually with him I'm not really with him, you know? Started a challenge where I put my phone in another room during his homework time and dinner. Two weeks in and he's actually talking to me more. Feels overdue but also... why did it take him calling me out for me to notice?