It is a big step becoming a leader. There are rewards for taking the initiative, though. It can be difficult at times, but the rewards outweigh the hassles. Somebody has to be the producer. If you do not step up, then you will just have to wait for a producer who may never appear.
Some of those on the fence may soon become overwhelmed with the day to day responsibilities of producing a film and may lose sight of the point. Just because your passion does not strictly fall under the category of producer does not mean you do not have the capacity or incentive to carry out some of those functions. This is a means to an end.
You may not want to be a film producer ever again after your first film. You may want to be a director and have a "real" producer do all this hard, boring stuff. This would be a route to that. Directors who get films made get to make more films. There is no better way to convey your skills as a film artist of any kind than with a feature film. You may be an actor that wants to just act and you may get the chance if you can give yourself your first break.
You may be inclined to empire. You may want a studio of your own or you may like making films independently. In addition to your other skills, you may come to enjoy producing films and want to do it for the rest of your life. For this person producing the first film is a no-brainer, but would they have ever discovered this gift had they not taken the steps in the first place? You may not think you are this kind of person and be surprised at the end of the process.
A film is no better than the people that make up the crew. So you want to make the best movies by working with the best. But how do you find them and gain their trust? Film artists respond to films. Lots of people have the gift of gab but if you can make a decent film you are a cut above. This first film may not be your best, but if it is remarkable in any way people will be drawn to it and you as the producer.
Producing a film yourself is much harder than creating a director's reel, going on auditions, or relying on others to produce. For motivated film artists it is a viable way to create a career or business. There will be times you do not know what you are doing and days of pure frustration. Just keep in mind why you are doing all this and your resourcefulness will come to the fore and put you ahead of the others that just wait for opportunities rather than creating them.