My 6yo car doesn't have bluetooth, and I regularly do long drives listening to podcasts and running satnav apps. Thankfully I have a sensible phone, but what's

My 6yo car doesn't have bluetooth, and I regularly do long drives listening to podcasts and running satnav apps. Thankfully I have a sensible phone, but what's the benefit to me in having a phone that can have sound output or charging but not both?