It makes sense given the history: the EU forced phone manufacturers to settle on one charging standard, this lead to everyone having a micro USB charger, allowing everyone else to piggyback.
Off course it made sense for phone manufacturers to choose some pre-existing standard that can handle data and power in one connector.
But if 20 years ago you would have asked me to guess the future universal power connector, I would have guessed on a standardized size and voltage for the ubiquitous round connectors (barrel jack?), or maybe an adaptation of headphone connectors. MicroUSB with its comically small contact area, (originally) only 2.5W maximum power and fragile connectors that are a pain to plug in wouldn't have been my guess.
Off course it made sense for phone manufacturers to choose some pre-existing standard that can handle data and power in one connector.
But if 20 years ago you would have asked me to guess the future universal power connector, I would have guessed on a standardized size and voltage for the ubiquitous round connectors (barrel jack?), or maybe an adaptation of headphone connectors. MicroUSB with its comically small contact area, (originally) only 2.5W maximum power and fragile connectors that are a pain to plug in wouldn't have been my guess.