That's a lousy percentage of first dates leading to second dates.
I also think most first dates are sexless. Most men think that a first date with sex and no second date is a better outcome than the infamous "one date, no sex, no second date" outcome.
I like the spirit of the Tom Leykis $40 rule that was generated during the late 1990s. That rule was that dates should cost no more than $40.
According to the CPI inflation calculator, $40 in April 1998 is equivalent in purchasing power to $78.96 in April 2025. I have said in the last couple of years that the Leykis $40 rule needed to be adjusted to $70-$75 today.
www.bls.gov
The goal is to have an inexpensive first date but one with a sexually charged atmosphere. Coffee fulfills inexpensive but lacks the sexual vibe.