A friend or a partner is not the same as a co-founder. If investors were saying they didn't fund solo founders who lack a support system, that would be different. But instead they say they don't fund solo founders.
Of course you cannot build Amazon on your own. The difference is whether you have the type of friends who can work for free for a year while they co-found a business with you (and would be interested in doing that), or whether you are capable of filling the second-head gap with a good hire.
Of course you cannot build Amazon on your own. The difference is whether you have the type of friends who can work for free for a year while they co-found a business with you (and would be interested in doing that), or whether you are capable of filling the second-head gap with a good hire.