Query: "on accident"

[sagehen]

>Today I was asked about the phrase "on accident" by a mother whose three
>grown children (in their twenties)  use it rather than "by accident."  Is
>this a regionalism? Is it a feature of the younger generation?
>
>Gerald Cohen
~~~~~~~~~~~
In contrast to "on purpose"?
I don't think I've heard anyone say this, but I wouldn't find it surprising
in a very young child's speech.
A. Murie