Thank you for your detailed comment. Your and Vega's explanations are just very nice and clear!
Apple, as per you example... of course, if I am Mr. John I wouldn’t allow my daughter to engage in that temporary marriage. I totally agree with you! And of course, I agree that if temporary marriage might hurt/discriminate woman in any possible way, or affect her future life not in a good way, it’s not acceptable!
.. but there are so many other situations...
with great respect to you, Apple, and your comments!