The answer about USB-C is not yet, maybe in the future, but it's complicated.
Anybody that's excited about Apple (and now Google) removing the headphone jack should read the following:
http
://flip.it/GUQuV
It's a lengthy article, but it explains quite articulately why these companies want to remove the headphone jack and why this move is intentionally screwing the consumer.
My recommendation would be not to buy a phone without a headphone jack. I recently picked up an LG V30. It's awesome! Its sound output is so good, most people wouldn't need to carry a separate DAP