Confusion on Kyrie and IT age?

[celticsclay]

Hey all,

So this has been progressively bothering and confusing me because I keep seeing it and hearing it all over the place (including from my brother in real life). Somehow IT is 4 years older than Irving and IT is 30.

IT is 28 and turns 29 in February
Irving is 25 and turns 26 in March

Is there some reason people keep thinking
A) IT is 4 years older than Irving instead of 3
B) Think IT is 2 years older than he is?

The amount of people I have seen mispeak this difference and IT's age in general has really got me baffled....