HSK 7–9 grammar · adverb
何必
何必 — why bother …?
Pattern
+ +
( ) can be left out · other words may come before, between and after
How it works
何必 is a rhetorical question meaning "there is no need to…". It expects no answer — it advises against the action. A final 呢 is usual.
Examples
这么近,何必打车呢?
Zhème jìn, hébì dǎchē ne?
It's so close — why bother taking a taxi?
何必为这点儿小事生气?
Hébì wèi zhè diǎnr xiǎoshì shēngqì?
Why get angry over such a small thing?
Related

See it in a story
In the app, 何必 is underlined wherever it appears in the stories you read, and practised with sentences from them. Free.