One thing to note is that you are using infoscout's percentages for if people are buying their console for a child with vgchartz black friday sales. You shouldn't mix and match sources when they use different methods for collecting data.
In this case, Infoscout's survey was specifically based on reciepts from Walmart and Target and not the entire US video game market so its gift percentages are only valid for sales from Walmart and Target.
Xbox one held a 53% marketshare in those stores. PS4 held a 31% marketshare.
66% of xbox ones were sold as presents for kids. 45% of ps4 consoles were sold as presents for kids.
That means the marketshare in walmart and target look like this.
35% of consoles sold were xbox ones for kids
18% of consoles sold were xbox ones for adults
17% of consoles sold were ps4s for adults
14% of consoles sold were ps4s for kids.
16% of consoles sold were all other consoles for both adults and kids.
And this is just for Target and Walmart. We have no information on the rates from any other stores. Though I suspect both Target and Walmart both skew much more heavily to gift purchases for children than say gamestop.
