BRUSSELS (AP) — The European Commission proposed Thursday to start negotiations with the United Kingdom to allow young people to move freely, work and study in both regions after Brexit — the U.K.'s departure from the EU four years ago.

According to the EU, the withdrawal of the United Kingdom from the EU following a referendum in 2016 has damaged mobility between the two areas.

“This situation has particularly affected the opportunities for young people to experience life on the other side of the Channel and to benefit from youth, cultural, educational, research and training exchanges,” the Commission said.

When the U.K. was still a member of the economic and political bloc, its nationals had the right to live and work freely in the EU, with reciprocity for EU nationals in the U.K. Under the agreement proposed by the EU’s executive arm, EU and UK citizens between 18 and 30 years old would be eligible to stay up to four years in the destination country.