Literally every day. I got a new phone without one -- P7P, and when I reached to plug my wired headphones in, my next action was ordering a USB-C DAC. It's stupid that the industry has gone in this direction. An analog jack costs you basically nothing in material costs, it's like 5mm of plastic and copper, some solder, no more than 0.30-0.52 ¢ on a phone that market retail sells for $900-1200. It's insanity.
The cost isn’t the only thing affected by the BOM. It also has implications on design, elements protection, dimensions, and mass. I understand many still love this feature though and consider it well worth the trade-offs.