Second Foundation, what seems to be an out of place reference?

I usually go back and reread a few of my favorite books every few years, as

perspectives can change over time (and memory fades!).

I noticed that in the Second Foundation book something that didn't really 
stick out the last few times I have read it, but for some reason this time

it is peculiar.......(this may have been discussed before in this
group)....

Bayata's granddaughter Arcady (at the age of 14) eventually let's in a 
visitor through her window after some discussion.  After she let's him in,

there is a reference that she makes to having a "baseball bat" under her 
bed, which is why she wasn't too concerned about letting a stranger in 
through her window.

The reference of a baseball bat in this supposed timeframe just seemed so 
out of place.  I would think it would be part of a long forgotten part of 
human history along with the origins of mankind, or something of this 
nature.

It just kind of jumped out at me this time and I keep replaying it over in

my mind, and it seems just as odd every time......

I guess the reference just seemed so out of place.....(again, maybe it's 
just me).  Did anyone else find this reference odd?