Hello, my mother had petitioned for my oldest brother (married with wife and a child who is now 21) and the website says "waiting for interview". My question is that long ago, when my parents received their green card interview, I was under 21 and I missed the opportunity to fly back to the country of my birth. They were told that since I am in USA, I should be able to adjust my status (I was an international student at that time); however, long story short, once they arrived here and i went with them (I had already turned 21) so my application was denied at local USCIS Office. They told me that I could have gone back home and completed the interview process. I met someone recently who had petitioned for her sister and 2 sons back in 2008. They just came to USA in February. The sons were both over 21 but they were able to arrive to USA under their mother.
Question is that were they approved because they were still living there regardless of age? My niece is currently in USA as an international student but she is concerned that she is 21 already and may be denied even if she flies back to her birthplace when their interview appointment is confirmed. Sorry for long details but really want to understand how this would work. Based on my previous question here on this forum, it was suggested that she must go back even for 2 weeks for the interview. As of now, how things are, she is also afraid of return.
Thank you in advance.