Being a solo founder with autonomy has advantages and allows you to take decisions faster but it is not without its downsides. As the proverb says (paraphrasin

Being a solo founder with autonomy has advantages and allows you to take decisions faster but it is not without its downsides. As the proverb says (paraphrasing) - if you want to go fast go alone, if you want to go far take people with you. That does not necessarily mean get a cofounder - but even solo founders will need a mentor, chairman or some form of outlet for their thoughts and problems. Otherwise it's a lonely existence and when times are hard it very quickly becomes overwhelming for most people.