This is at times a controversial topic depending on the lineage and school rules. Rolling with upper belts and the etiquette within rolling.
Some schools have a policy where the upper belt gets to choose the training partner. This may be because of tradition or the hierarchy of respect in an academy. Whatever the case may be it is common in some schools.
While other schools allow any person of any rank to call any person of any rank to train.
How about you? What is your school’s policy and what do you think about this topic?
If you would like to read more about interesting Jiu Jitsu topics this one is very popular called Should a Blue Belt Teach Jiu Jitsu.