Default Message Icon?

so a friend of mine purchased a verizon moto g from walmart ..in the kitkat dialer when you press on someones picture you should get a message icon, however this is not the case on his phone..it varies and i cant figure out why ..even though on some contacts the icon is not there, if you touch just on the right side of the line where the message icon would normally be..it will open the messaging. but why is the icon there on some and not on others??
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If i for some strange reason was able to help you in any way..hit the button BRO!


Sent from my Iphone...o wait I meant my Galaxy Note..
sorry,they are hard to tell apart since they are both rectangles!