Even if your cofounder has absolutely the best intentions, not everyone is cut out for it. It's very easy to be "Saying the right things" and not even aware they they aren't being honest.
In fact, I'd argue that %50 of the "co-founders" of YC startups are not actually ready to be founders, and I suspect that the number who are still with the startup 3 years after are very small. (and that a large number of the YC companies that don't exist after 3 years don't exist because of a bad choice in co-founder.)
In fact, I'd argue that %50 of the "co-founders" of YC startups are not actually ready to be founders, and I suspect that the number who are still with the startup 3 years after are very small. (and that a large number of the YC companies that don't exist after 3 years don't exist because of a bad choice in co-founder.)