No thanks. I can tell a non-engineer, non-technician when I
see him.

Yes, but taking your argument you should use abacus
instead of your computer to do all the calculations ;-)

I generally agree with you that fancy electronics add
components to the system, and in consequence we have
more components, and bigger probability for a system
failure due to the single component failure...

But in the case of the low fluid warning lamps it is no
issue, because if the warning system fails you will not
have anything worse than a system without warning system.
So if you have to choose a system with no warning light
and a system with a warning light which might get wrong
some day I would take the "risk" of having this convenience.

To be honest I am going to find this sender unit on some
Canadian autoparts site and outfit it in my USA version :-)
I hope necessary harness is there to give the signal to
the light on the dashboard... If successful I promisse
to come back here and describe this mod for anybody
wanting to do the same.

I personally am finding much of the "fancy" electronics to
be more trouble than they're worth.

I am on an extended visit in a house with a heat pump with
too many electronics to it. Four visits so far from the
repair technician in one year. Contrast this with my own
house's furnace: Four years and no problems whatsoever.

Same deal with newer cars. So much of the electronics are
bells and whistles or break too often.

I can see you are an old fashioned guy who likes to spend time
with his car and keep the garage full of funny bottles... :-)

Good design in my opinion would be low fluid warning light
on the dashboard and reservoir big enough to hold FULL bottle
when the warning ligth comes on to minimalise required mainenance.

The only warning I get from my accord is that the stream of
water is weaker, but then I have 2-3 more attempts and it is dry.
Even then it does not hold the full bottle, which is sad... :-)

Don't get me wrong, but I am comparing this accord to my old
1995 camry, which it happens had the reservoid big enought
to hold the full gallon of fluid in one big gulp.

If your preferred method is to suck the reservoir absolutely dry before
refilling it, thus risking being without washer fluid at some point when you
really need it, then yes, I suppose you might consider it a bad design.

If, on the other hand, you do what a lot of people do and add fluid to the
reservoir periodically before it's completely dry, and then put the bottle
back in the garage for next time, then it really doesn't much matter how big
either the reservoir or the bottle is, does it?

For the second time I needed to refil washer fluid in
my 2004 accord coupe. I got the 1 gallon jug from the
store when the washer nozzles stopped delivering fluid.
Poured the bottle but before the bottle was empty
the container in the car was full and overflowing.
2-3 inches of the fluid left unused in the bottle.

Is this what you get? Or my pump is not sucking all
the fluid from the container?

Why would you design a car with a washer fluid
container just smaller than the widely available
container the fluid is sold in the stores?

Would you consider it as a bad design?