老若男女

1. Origins, structure, and basic meaning

• Structure: 老若男女, read ろうにゃくなんにょ, refers to people without distinction of age or gender.
• Basic usage: It is used to describe a park that anyone can enjoy or a festival attracting a varied crowd.
  • この公園は老若男女が楽しめるよう設計されている。

2. Common pitfalls and similar expressions

• Emphasis compared with 皆
  • 皆 can refer to all the people in a given context, while 老若男女 emphasizes breadth across age and gender. 老若男女を問わず means without making those distinctions.