i actually asked every woman i came across for 2 months straight. most women guessed 24-26. i was saying some women guessed as low as 22, not that it was the average. no women guessed 27 or older and this was out of a sample size of around 40-50 women over the coarse of 2 months including 18-20 year old women (that were attractive and that i fucked).
Canada