Things to always consider is that if you're a technophobe, everything in life is difficult and a headache and a problem and there's a lot of "Why can't this just read my mind yet?" mentality.
That really is something I've run into continuously over the years. You have to know your phone's settings well enough to start and stop streaming music from your phone to the device. It can be setup to be automatic, but that means when you are home, and in range, then the speakers will work 100% of the time with your phone. I'm not sure if phones are bright enough to know NOT to use the speakers for phone calls... which they likely will try to do. This can be an obvious headache.
This is when an option, like Sonos, comes into play. Because it runs as an app on your phone, you can start music, like a playlist, from your phone, to the Sonos, but your phone still acts as a phone, and if you decide you want to stop using it, you go into the app and press the 'STOP' button. If someone else wants to use it, they go into the Sonos app and they start their choice of music playing. Is this easier? For some it is, for some it isn't. Once you know how to use the app, it's perfectly easy enough to use. But, if you end up never deciding to play with the app, it's just something new to complain about.
"The new system sucks!"
"Let's sit down and go over the app for it."
"I can't even get the app to download!"
"Wait... You didn't even play with the app yet?"
"Why can't it just play my music back automatically?"
*sigh*
I go through some of this with my wife. I've gone through it with tons of clients over the years. They want it to be super, super, super, super simple, and to read their minds, at the same time, while performing half a million different functions. Oh, and it should be cheap.
Bluetooth can be really easy. It's range limited though so you can't be more than about 20 or 30 feet from the speakers with your phone.
WiFi is more reliable, and can be better quality, but requires a bit more smarts to use up front. But, once you know how to use it, is not any more difficult to use than Bluetooth.
The easiest is a set of speakers which need you to plug your phone into them. Just like you would a set of wired headphones. You plug your phone in, the speakers play back whatever your phone is playing. Want the speakers to play someone else's phone? Unplug yours, plug theirs in, done. No wireless dropouts, no real learning curve.
