1. Nowadays boys and girls finish school early. Nowadays boys and girls get married later. Nowadays boys and girls start working later. Nowadays boys and girls have children later. Nowadays boys and girls go to university early.

2. I think people enjoy life more today.

3. Boys started working early and girls matured earlier.

4. No, I already expected. Formerly other habits, and life was different.

5. Emergence of technology and greater care with health and future.