What sort of evidence are you looking for? If indeed people were having problems cashing out as you seem to think, this would have been big news. In which case

What sort of evidence are you looking for? If indeed people were having problems cashing out as you seem to think, this would have been big news. In which case you should be able to find and provide evidence of this occurring. And, if I understand you correctly, you might as well ask for evidence that investors can sell their TSLA stock for cash.