ようになる
To come to be able to / to reach a state where / to gradually change into a new condition
Indicates a change of state over time, especially ability, habit, or natural change.
N3
Meaning
To come to be able to / to reach a state where / to gradually change into a new condition
Indicates a change of state over time, especially ability, habit, or natural change.
Formation
Verb（dictionary form）+ ようになる
Verb（ない form）+ なくなる
Explanation
「ようになる」 expresses that something was not the case before, but becomes the case after a period of time.
Key nuance:
Focus is on resulting state
Change happens gradually or naturally
Often used for ability, habit, physical change, or situational change
The subject does not always intentionally control the change
This grammar does NOT mean “try to do.”
That is 「ようにする」 (different grammar).
It emphasizes that a new condition has been reached.