Agree with everything above. I would also say, I spend more than 9 hours a day on my computer. Sure, it's my job, but I'm curious what "healthy computer habits" means in a world where this person will very likely be expected to spend 9 hours a day on the computer for their work. Unhealthy computer habits as a teenager are what made me able to get a job in this field without a degree. Certainly some of this was unhealthy for me, and 9 hours a day playing video games can be problematic, but ultimately I went from spending 9 hours a day in front of a computer to.... spending 9 hours a day in front of a computer.