Its a fair point. Why do we name ships woman? for example, or men call there cars woman names and woman call there cars boys name (now I shall defend this statment by saying) but this isn't allways the case.
My Car is 14 years older than I am, and its a girl Car, I always row with my Husband as he has a car that he says is a female and i say is male ... when talking my husband says HE in reference to the car and when writing he puts SHE .. I don't think it there is any logic behind my sexing of our vehicles i just guess its down to the way they feel when driven, I like to treat my car Gentle ( a little too gentle for her age which is why she plays up when i try to tret her nice) darn car must be a bad girl because she likes to be driven hard.. My husbands car HAS to be thrashed to get anywhere, thats the way it was designed..
I don't just think Rollercoasters can have Genders what about the other rides?