If you already have a smartphone and your issue is addiction/time spent on it, why not just strip the phone down to a utility device? If it's a willpower issue

If you already have a smartphone and your issue is addiction/time spent on it, why not just strip the phone down to a utility device? If it's a willpower issue, surely its better to try to overcome that issue and change your frame of mind regarding your phone (seeing it as a utility, rather than entertainment), just as it is for other things in your life that will demand willpower. I use my phone about 10-15 minutes a day. It sits in my pocket until I need some utility or somebody contacts me. Anecdotally, one of my friends switched to a dumbphone and loves to use "not having a smartphone" as a talking point, despite annoying myself and others with requests to check things on our smartphones for him. It's quite tiresome.