"Why are women so bad at parking cars?" (NSFW…

An NSFW riddle was posted on net.jokes on July 3, 1984:

Q: Why do women park so close to the curb?
A: Because all their life, they’ve been told that this is six inches:
|—————|

A different form of the riddle was posted on eunet.jokes on October 1, 1991:

Q: Why are women so bad at parking?
A: Because they’re always being told that this much (indicate about 1cm with fingers) is 6 inches!

Google Groups: net.jokes
Why do women park so close to the curb?
.(JavaScript must be enabled to view this email address)
7/3/84
Because all their life, they’ve been told that this is six inches:
|—————|
—
Geoff Kuenning
Callan Data Systems
...!ihnp4!wlbr!callan!geoff

Google Groups: net.women
Why do women park so close to the curb?
.(JavaScript must be enabled to view this email address)
7/3/84
Because all their life, they’ve been told that this is six inches:
|—————|
—
Geoff Kuenning
Callan Data Systems
...!ihnp4!wlbr!callan!geoff

Google Groups: eunet.jokes
Jokes to offend almost everybody.
B A Page
10/1/91
(...)
102. Why are women so bad at parking?
Because they’re always being told that this much (indicate about 1cm with fingers) is 6 inches!

Google Groups: alt.tasteless.jokes
oldies
Chrishantan Krishan
12/12/93
(...)
Why are women so bad at parking?
Because men have been telling them for years that this big (hold two index fingers 3 inches apart at eye level) is 6 inches.

Google Books
Split Down the Sides:
On the Subject of Laughter
By Rupert D. V. Glasgow
Lanham, MD: University Press of America
1997
Pg. 58:
Why are women bad at parking? Because men keep telling them that this (joker indicates an inch) is eight inches.

Google Groups: uk.misc
why are women so bad at parking???
Mike Warren
2/4/99
Because for years men have been telling them that 6 inches is this
<---------->

big.
the old ones are the best;)

Google Books
The Language of Jokes:
Analyzing Verbal Play
By Delia Chiaro
New York, NY: Routledge
2006 (1992 first printing)
Pg. ?:
Q. Why are women bad at parking?
A. Because they’re used to men telling them that this much (joker indicates an inch with thumb and forefinger) is ten inches.

Twitter
Lesley Pearse
@LesleyPearse
Replying to @couchpotatoadam
@couchpotatoadam Why are women so bad at parking? Because men tell them this is eight inches. (Holds up hands to show three inches)
10:51 AM · Jul 15, 2010·Twitter Web Client

Twitter
Sahar Husain
@sahar5
“Why are women so bad at parking?
Because men convince them that 3 inches is really 10 inches! BOOM” #bazinga
4:42 PM · Nov 30, 2011·Twitter for iPhone

Twitter
A Borderline Mom
@hamsterkitten
Why are women so bad at parking? Because they are constantly being lied to about what 8 inches looks like! #joke #humor
10:35 PM · Jan 16, 2012·Twitter for BlackBerry®

Twitter
David Heyman
@dcborn61
Replying to @BlueEyedArt
@BlueEyedArt I always heard the joke as “Why do women park so close to the curb? Because they’ve been told this (gesture) is 6 inches”
5:28 PM · Aug 13, 2013·TweetDeck

Reddit—Jokes
Posted by u/TokenMixedGirl May 3, 2014
Why are women so bad at parking?
Because they’ve been lied to about what 8 inches look like their whole lives.

Reddit—Jokes
Posted by u/TokenMixedGirl August 15, 2015
Why are women so bad at parking?
Because they’ve been lied to about what 8 inches look like their whole lives.

Reddit—Jokes
Posted by u/gerciokas April 8, 2018
Why are women so bad at parking cars?
Because they are constantly being lied to about what 8 inches is.

Reddit—DirtyJokes
Posted by u/patstoddard February 23, 2019
Why are women so bad at parking?
Cause they’ve been lied to about what six inches is their whole life

Reddit—Jokes
Posted by u/lockecole38 June 30, 2020
Why are women so bad at parking cars?
Because for the last 200 years they’ve been told that three inches are actually six.

LaffGaff
Bad Parkers
July 1, 2020 by laffgaff
Why are women so bad at parking cars?
Because for the last 200 years they’ve been told that three inches are actually six.

“Why are women so bad at parking cars?” (NSFW joke)