He said that it is useful and makes his life easier. He did not said that whole family would die without it.

What I am saying, is that I think the increase in convenience is largely perceived.

Are you arguing that we should just stop creating anything new, since we clearly survived before without it? This comment could literally apply to ANY new thing.

No I'm not, I work on home automation for a living. I am saying the value and added convenience is largely perception and it doesn't. I raised my first kid pre-echo and my second post echo. I think for the most part, raising a kid is easier than we thing, and we are surprised at how well we are doing and attribute that to things around us, much like our old superstitious ancestors.

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Clap on, clap off. The Clapper!

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You can't clap with a baby in your arms?