I am in my mid-30s and fully support myself. So why is it acceptable for 25-year-old married people I used to babysit for (and whose parents are supporting them, so they are definitely somech al shulchan avihem) to still refer to me as a girl?
I would agree with maturity levels being part (but only part) of the reason behind the shidduch crisis. I went to college and got a good job. The guys around my age when I was 22 or 23 acted like I was in high school. They seemed rather immature.