Do we really need to know the sex?

Over my 24 years listening to people having babies it's interesting to see where the trends go for finding out the sex. Before we could find out mothers still bonded with their unborn and dad's bonded when the little one came out looking like him. Now that's what we hear, oh technology helps us bond. As we we can pick baby clothes and colours! I don't remember feeling any sense of lack not knowing. However as i was growing my first baby my priorities were on the building blocks of life: NUTRITION! I would just like to raise a few points perhaps new parents have not yet thought of. First i believe as the research states, ultrasound should be used sparingly and only for diagnostic treatment. So if there is a problem. How many times over the years have i seen people told: the baby is too big, too small, too much water, not enough water, and other odd ones like 'he has a long femur - could be a problem. These are guesses, however when the technology guesses we are stuck with something needing to be done. Most of the time this causes unneccessary stress to mothers for absolutly no reason. Ultrasound as well has been linked to speech problems and hearing issues. These frequencies are alot to hit the unborn with. Of course medicine was created to find a problem, that's what we pay them for, but do we need to look for problems where none exist? Next is the issue of overconsumerism. More money will be spent on either pink or blue when we know the sex and after all doesn't everyone get TOOO many baby outfits? YES. Then what about the issue of preference. I had one mom tell me that when she found out she was having a girl she felt like she had let her husband down. After all he really wanted a boy. To which i say after labour and baby in arms neither of you care! I also have seen mistakes. Which makes mothers at once angry and grieving for the son/daughter they thought they were having. This is still a loss. So as you can see i believe this, very large surprise, the biggest life has is worth it. I can remember very clearly 22 years later, my husbands words " oh honey, you got your little girl" as i sit her now with tears of joy for that moment there is no technology that can compare to that one simple memory.