Lights don't always mean that you will be seen.

Some americans got the entire rear end looking like a christmas tree.
Flashing lights in all kind of colours.
1 of the "Globeriders" got it on his BMW GS.

I don't think it will help a lot, at least not over here.
It would be better to take away the drivers license of people older than 70 years.

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Derbi Senda DRD Sm "04 (black) => BMW F650GS "04 (yellow) => Yamaha xt660z T�n�r� "09 (blue)