1. Well be respectful and a good role model for the people in your clan and make sure that everyone is doing what they need to. It's like being a manager at a store, well a good one anyways.
2. I think that I could be a clan leader, but I don't have any reason to be one, I am really active on forums, and I am usually in-game if I am not working, or binge watching a series lol. I have found a great family and I am pretty settled where I am.
3. I think I put why in the 2nd one. There are probably more reasons why I could be but I can't think of any.
4. You can make many mistakes as a clan leader, being irresponsible with the clan, not monitoring it's members, being disrespectful to it's members or other clans, getting yourself banned as a clan leader, ect..