I don’t think you must have sex with a woman to know if a woman likes sex.

Too often, people use sex as a form of currency to get what they want. The don’t enjoy sex, they trade sex. For security, social status, power, and of course money.

Sexual compatibility is very important. It isn’t just technique. Frequency and desire must be considered.

If one partner likes sex 4 times a week and the other is content with twice a month, that monogamous relationship is doomed.

Most of these needs and attitudes can be uncovered in conversation.

I agree, the test drive analogy is not valid. You can learn more about your sexual compatibility from a kiss or caress than a weekend in bed.