i have had 3 blowouts in a year, and in the middle of nowhere! so you need to be able to do it, if a guy did stop and help i would certainly let them gentleman are a rarerity nowadays.
My local college paid me for one academic year, for all women, to do a years basic mechanic course, best thing i ever did. Only 3 of us achieved it though. Really handy for when you breakdown, buyin a new car or taking it to the garage.
One problem though, i have a disco so being 4ft 11" i have to use a stool to work on the engine!