One major disadvantage in the Roman system of education was that

the poor would not receive formal education like the rich who had private tutors and attended what we recognize as schools. The poor would only learn the basics of reading and writing. This is a disadvantage because the poor were unable to more up social class because they were uneducated.

Explanation:

european feudalism was a combination of legal and military customs in medieval europe that flourished between the 9th and 15th centuries. broadly defined, it was a way of structuring society around relationships derived from the holding of land in exchange for service or labour.

japanese feudalism. the era of feudalism in japan took place from the 12th through 19th centuries. during that period local rulers, either powerful families or military warlords, dominated the land, while the emperor was merely a figurehead and not a significant political presence.