Volcano Armrest?

I went to PKD on wed. and while in line for Volcano, I saw that only one seat has armrests in the two person rows. Why do only certain seats have them? Are they for larger people? If you have any info help me out!

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Ricochet: Bouncing to you in 2002, Only at King's Dominion!

I asked when I was there and the Ride Op said they were for larger people.

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Kings Dominion park guide now online at
http://www.coastergrotto.zzn.com

I'm smiling b/c as you've seen (have a closer look) with my LEGO coasters, to fit two minifigs (the little LEGO people/figures) side by side on a 2x4 plate, have resorted to pulling an arm off one of the riders per row! :)

It's a good idea that this is not park policy!

That is like Kumba having one seat per train having a seatbelt.