There are fewer bigger mistakes you can make as a founder than not having 4+ vesting. Ideally, a decade.
Because vesting protects the most committed founders from the least committed founders. That’s what it really does.
There’s nothing that can bring you down more than having say 4 co-founders … and one leaves after say 6 months, another in 12 … and then having the other 2 stay and give their heart and soul for 20 years … and everyone make the same, or close to it.
It hangs over your head. It’s demotivating. It eats at you.
Things need to be fair among founders.
A good, thoughtful founder vesting schedule makes sure things are. Very effectively.