This just in: People who have some experience doing things in general tend to be better at doing those things.

In my experience of working at startups they are generally too focused on "disruption" and tend to throw the baby out with the bathwater. Sometimes existing industries do things for valid reasons that you just don't understand yet and you need to in order to change them. Instead the community looks up to those fortunate (often just lucky) enough to be successful and tries to derive a signal about why they succeeded in the first place that doesn't really exist.

Experience in business or an industry gives you understanding of things it might take years to learn and helps you avoid making simple mistakes that can ruin your company.