No not if you’re comfy along with your system of car entry.
I’ve by no means arrange my iPhone to entry my automobile. I solely use my iPhone — higher sit down for this — for telephone calls and never lots of these. I purchase 1500 speak minutes a yr. No apps. Very restricted use of it for e mail and texting. Only a telephone.
With my M2 I did arrange the cardboard nevertheless it was inconvenient to must open my pockets to get it out. And I did not like carrying a card in my pants pocket. I am used to a small key chain — with home and mailbox keys — and a automobile keyfob linked to nothing else. A card simply did not really feel proper. And with the cardboard I feared it might fail to work and as again up I carried a keyfob anyhow to have helpful — simply in case — the built-in key to permit automobile entry.