We must be looking at different graphs. It shows that text messaging, voice/video calls and email rank amongst the most popular smartphone features.
And sure, if you want to restrict yourself to 18-29 year olds, possibly there is a dropoff on phone calls (though I'm still doubtful). But the market is pretty much larger than that now.
I can't speak for the others but let me list some things I think we usually find in the top 5: Facebook, email, Messenger/WhatsApp/equivalent, Instagram, Snapchat, games, browser etc. The study lumps all those together which is not relevant to this discussion. The point is that people are mainly using their devices as computers, not phones.
I do disagree. The study might lump all the Internet apps together, but it still shows that 92% of all users used voice/video calling at least once in the survey period, whilst it shows that 89% of all users used the Internet at least once. Hence placing voice and video calls in the top 5 most used features.
The 30-49 year olds have 1% greater use of phone over internet, but I'm (totally) guessing that would skew closer to the 49 side of the band rather than the 30 year old side of the band. Since we were considering 20-40 year olds, and your own quote spoke about 18-29 year olds, I think that distinction was fair.
Anyway, since you haven't answered my question, and instead want to restate the question differently over and over, I'm done speaking with you. For what it's worth I haven't downvoted you, but I can guess some likely reasons. Mainly, that you keep shifting the argument and avoiding direct questions.
Since when did I mention only 20-40 year olds? That graph shows the percentage of each age group who used a particular feature once, the graph I showed provides the data in aggregate across all age ranges.
No need to get so annoyed, and no need to call me obtuse.
And sure, if you want to restrict yourself to 18-29 year olds, possibly there is a dropoff on phone calls (though I'm still doubtful). But the market is pretty much larger than that now.
http://www.pewinternet.org/2015/04/01/us-smartphone-use-in-2...
(kind of amusing to see all the Apple fanbois downvoting me to oblivion though - have I made you worried that I might have a point?)