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:

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for many centuries there were important factors which the economies of the muslim empires developed increasingly. they applied economic procedures in production, investment, finance, taxation and property. they used to tax certain goods (for example: harvest), they charged interest on money lent, they signed contracts with merchants; they relied on a common currency, and they used checks as well as promissory notes. with the money collected by means of taxation, the government provided the needy with an income. in addition, trading networks covered huge distances, so far regions started to have contact and exchange goods. this trade network covered areas of asia, africa and europe.