why don't Americans like to use the word "dashing"?

That's what I do in my one horse open sleigh.

For the same reason that Brit's don't like to say "lousy."  i.e., local dialect preferences.

Well if they don't they are missing out on one of our most popular Christmas songs ever hey:

JINGLE BELLS!  🎿🎅👼🤶🧑‍🎄🎄

"Dashing through the snow
In a one horse open sleigh
All the fields we go
Laughing all the way"  ☃️. 

Ps. Sorry "The Football God."   Just noticed your answer was about the same thing as mine.  Great minds think alike lol.  🖖🙂👍

It reeks of upper class speech. And one think Americans don't like is rich snobishness 

Dashing away with the smoothing iron is an old English folk song.
Dashing though the snow (on a one-horse open sleigh) is an American song
I think you'll find it occurs much the same on both sides of the pond.

Dashing through the Snow is American

Dashing as in Me is British

Dashing around we all do that at Times

We do. Every Christmas, It’s, “Dashing through the snow, in a one horse open sleigh................. and so on.

I'm British and I've never used "dashing" to mean "handsome" or "good-looking" in my bloody life. "Dashing", in that context, said with my bloody sand-paper and gravel Cockney accent wouldn't bloody sound right at all, mush! 

Some people might never have heard the word. Some might not understand it's context.  If you believe that Americans - generally - don't use it then it's Americans whom you should ask about this.  It might just not be in their vocabulary or have a completely different meaning to them and is not one that they choose to use.

You will find out ONLY by asking them.

isnt dashing for a bus and he looks dashing in hes suit the same !!! americans use running for the bus or doesnt he look suffisticaled . as an american what the difference between a truck and a lorry ??

In what sense? Americans often say "He dashed out of here like his coat was on fire." Or "He's dashing madly to and fro."
If you mean it as an adjective describing a person, no, we don't use it. 

No it ain't. Brits stopped using it in the 50s.

It's acquired a new meaning lately, in the U.S. at least. "Dashing" means delivering food ordered through DoorDash. The delivery people are called dashers.

It's not that Americans "don't like" to use the word. They simply don't use it.

Same as we don't say "multiple times" but "several times".
To those who aren't sure, "dashing" is an adjective - a little old-fashioned these days but NOT "snobbish"  - meaning something like a combination of elegance and daring.

Dashing Donald and Ravishing Ronald.  and what is this "ain't it not" BS?  double negative to what purpose?  Why don't Americans using dashing and ravishing?  They are seen as effeminate and upper class ideals.  Nothing much good about the "Upper" class in American sensibilities.  Who would want to be seen as dashing? 

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