that's the way it's always done here in chinaland! i suppose it's "traditional."

advantage? in a developing country where few people own or know how to use
tools (wrenches?), and the quick-release is an alien concept, and most repairs
are done by the "bike guy" on the corner in the middle of the sidewalk with
limited space.........because 99% if bike riders don't know how to change
a tire or fix a flat or.......