But there is insurance for smart contract integrity already deployed and in use for a multitude of projects (see unslashed finance for example).
I don't need to sue as long as I get my money back.
it depends on the country u are in. in Brazil the law is a joke. I prefer to risk a typo then be entangle in any legal battle here. I know people that won cases 30 years ago, and are yet to see any money.