Egypt's cabinet has approved a suggested amendment to the child law which lowers the official age of majority from 21 to 18, in accordance with the 2014 constitution.
The amendment will affect court verdicts against those over 18 and less than 21 years old isolating them from children under 18.
Minors in Egypt serve sentences for violating the law in juvenile institutions rather than in adult prisons.
The amendment still has to be ratified by President Abdel-Fattah El-Sisi, who holds legislative powers in the absence of a sitting parliament.
Dozens of school pupils and university students have been arrested and tried in recent months, mainly on charges related to rioting and breaching a law that criminalises unauthorised demonstrations.