Oomis you are 100% correct in situations of middos, the parents should definitely press the issue with their child. In the excitement of dating for short periods of time (which is de rigeur in the haimishe system) a bad personlity could be overlooked by the girl/boy. Parents should definitely raise their concern.
The other “essential” information like sizes etc. are NONE of the parents business. He/she is marrying the person , NOT the parents and family.
Here is my 100% brutally honest assessment, albeit controversial opinion:
The root cause of the pressure to rush into shidduchim like a chicken without a head is the advertised “Shidduch Crisis”. The only winners thus far in the whole “Shidduch Crisis” mess are the shadchanim who can now push their damaged goods onto unsuspecting girls with a threat of becoming a “Shidduch Crisis” statistic. Hence, the girls settle on the most basic requirements that make a Bayis Ne’eman B’Yisroel.
The point is of a shidduch is to build an everlasting home, not a yearlong trial marriage. By ignoring very obvious red lights and air raid sirens, people are making a horrific mistake. Stay calm and realize that the only way to establish a Jewish home, is with the involvement of Hashem. Have bitachon, but you must do hishtadlus and check IMPORTANT things out carefully.
Best of luck!