You can't eat the phone
The grill never rings or beeps in the middle of the night
The grill can give you years of service
The grill doesn't get hacked
It's hard to misplace the grill
Few people want to party around your phone
Anybody in the world can bother you on your phone. Only the neighbors can bother you at your grill
Your friends and family will be happier with you playing with the grill than your phone
Grills are typically cheaper
Few grills are outdated before you even leave the store
Smoking on a grill: Good. Smoking on a phone: Not so good
No monthly service fee
I am sure there are many more reasons but the choice seems pretty obvious to me!

That's why I use the older phones until they literally die. More grilling and beer money!