tsk tsk tsk - trackdays are not about that - they are about how many buddies you can pass!
lol - your thinking is correct (including the paranoid part hehe). It is great to have a friend along, but it's not ness. However if you do it enough you'll end up knowing people at any event you go to , seems inevitable.
Solo trackdays are nice too, just have your own **** to deal with
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