A lot of us (so called startup mentors) can lament what a founder should do and what a cofounder shouldn’t do.
But, we fail to see each founder is running their own fight and their situation is very unique than others or what we might have gone through.
Also, what they, as cofounders share with me or tell me may not be the complete picture and I may misunderstand the shared information.
When I get a chance to mentor a startup, I take the path of a coach and ask them questions that help them understand the various paths that lay in front of them. At times I may also layout the options. But never chose the path for them.
Which path they take is absolutely up to the startup founders, often times it is very contextual.