Why do the transfer and exit gates of Guangdong subway stations only show outgoing and transfer line numbers and the entrance and entry prompts are missing?

Maybe it’s because you can find your way in by following the signs on the exit of the subway, so you don’t have to repeat the signs on the way in.

A subway station is a place where railway trains stop for the urban rail transit system (referred to as the urban rail system) to transport goods or allow passengers to ride. The current subway station does not refer to the stations built in the environment below the ground, but refers to the stations set up along the subway system. It can be built underground, semi-underground, on the ground or elevated.