There is still very much a need for wires. We think of wireless everything: Earbuds, headsets, remotes, garage door openers, Wi-Fi. However, we neglect the use cases where wires make sense.
Wires have no need for setup. They are literally plug and play, whereas other wireless devices need to pair and connect before you can play.
One device I keep going back to is my wired headset. Bluetooth has issues…