A very nice song with interesting and true lyrics. It's a song about a father and son relationship. The father would like to spend time with his son but he is often too busy and before he realizes it, his son is too big and is much more interested in doing anything else but spending time with his dad. Your students can listen to the song, fill in the gaps and then you can discuss if they feel they spend enough time with their parents. The song also offers examples of promises and requests so if you want, you can draw your students' attention to them too.