Why does Xiao Ming sound like a child, while Xiao Zhang and Xiao Wang sound like adults, while Xiao Li ... has always been a driver and Lao Wang has always been next door neighbors?

These statements are all habits. Xiaoming is often used in primary school sentences. Xiao Zhang and Xiao Wang are short names for some adults, driver Xiao Li and Lao Wang next door.

Lao Wang next door is one of the words that most people in China know. This word has many identities, which can be the object of your wife's extramarital affairs, the father of your children, the object of your anger and the protagonist of a joke.

From:

The domestic cartoon "Big Head Son Little Head Dad", because the big head son's mother invited uncle Wang next door to dinner, careful netizens found that the big head son's head was as big as uncle Wang next door, but it was different from the little head father's head. Some netizens thought that Uncle Wang next door was the biological father of Big Head's son. Then he was ridiculed by netizens as "Lao Wang next door."