I think the reason is that women and men both get pressured into getting married and it would take too long if they were to wait for that one person who stands on the same level as them. And this happens with alot of people, not just our culture either. After hitting a certain age, many people feel the need to settle down with someone regardless of the differences you may have.
Also as some other posters have mentioned in other threads, some people don’t consider mixing with opposite gender before marriage. many people go into arranged marriages where you have no idea what the other person wants. even meeting your potential future spouse a few times is not nearly enough to discuss every aspect in detail.
third, most parents, especially the ones of daughters, would rather get them married off to ‘acha rishta’ as long as the guy is earning well, shareef family. other things are not a priority for them, and they think their daughters will just figure it out after getting married.
personally I agree with you completely, I would never get involved with someone unless i know where they stand on all the important things. unfortunately, for many people, it’s not possible for various cultural and possibly religious reasons.