@CLEM
Same reason why I cannot order an Echo. Not only do I not have a cell phone I am not a member of Amazon.
I went to the Amazon Echo support site & found the following:
"Note: Voice control is not supported for Mac OS X devices"
SUPPORT LINK
"Amazon Echo comes ready to connect to your home Wi-Fi. The Alexa App is compatible with Fire OS, Android, and iOS devices and also accessible via your web browser."
But it doesn't indicate that the Echo will work directly from your computer's browser. 
Nor does Amazon mention if it does works through computer browsers does it work on Mac OS too? If so which one????? Yosemite and/or El Capitan compatible?
I have watched several presentations of the TSV & have yet heard the vendor or hosts mention any of the above or "system requirements." Not even when callers ask questions, does anyone mention if Echo works on Macs, PCs OS'es. Or even if you need an Amazon account.
"Never argue with a fool. Onlookers may not be able to tell the difference."
