My teens use these little things that attach to their phones to hold gym key, debit card and ID.
I use a traditional "wallet" or billfold as my abuelo used to call them, but I am positively a dinosaur using one. Also, the darn thing hurts my back if I leave it in my back pocket while driving/sitting.
Heck, I have been eyeing those crossbody bags or saccoche to hold the things that are in my wallet.
Also if you need to carry more than just a drivers license and a single credit card for your job. Trailers have their own registrations that you don't want people to loosely throw in their pockets, different professions have license requirements you need to have on you, receipts and notes are still important because you don't want to just be giving everyone your personal bank statements with cryptic "Part/product 482302" and no breakdown on the individual charges involved. Same with auctions and stockyards. Also someones phone on a job is way more likely to get lost/dropped/stolen and you don't want all your identification and licensing and registrations and receipts being lost along with your phone, you basically throw away the entire next day or two or more re-obtaining all that and like they say, don't put all your eggs in one basket.
Not that anyone has ever had to worry about pickpockets in my generation (even criminals aren't as skilled as they were in eras past, I guess), but I've always carried it in a front pocket. I'd lose it a dozen times a month otherwise.
>My question is; Why even have a "wallet" at this point?
There are things I keep in it I need. It's been a long while since anyone mistook me for a teenager.