Why don't AIIMS Bhubaneswar hostels provide single seated rooms yet all the AIIMS do so?

According to my friends studying at AIIMS Bhubaneswar, it is good to have sharing rooms. They justify it by saying, that for many students shifting for the first time away from your home, so it is better to have a companion 24*7 to talk.

You get to know their culture, food, etiquettes, etc. You will feel secure because knowing someone is by your side all the time.