I keep an old iphone 5 with a busted screen for this reason - I would dispose of it but there’s no way to clean up the data. What’s that you say, it’s encrypted

I keep an old iphone 5 with a busted screen for this reason - I would dispose of it but there’s no way to clean up the data. What’s that you say, it’s encrypted so the data looks like noise? Welp TFA says that’s not a problem since the screen broke a while ago, far prior to the latest ios release. Which prompts an interesting thought, how long will this current twilight last?