Despite being an avid supporter of Bitcoin, Elon Musk admits that he owns absolutely zero cryptocurrencies that he purchased himself.
Musk seems to find cryptocurrency to be a brilliant innovation.
The technology is so good that he decided to avoid it and use that bad old paper money and support this dying old monetary system. Awesome logic.
He's busy with his business maybe. No time for speculative investment. However I believe he will probably look for crypto related solution for his automated car-sharing business (if it does ever get realized). He might want to use crypto and blockchain to help automatic rental/payment. Or better yet, he might want to use tech like ShareRing to leverage his car-sharing business.
He is a shitty businessman tbh. The way he is managing with Tesla proves it.
Unfortunately, there is no any serious reason for him to use cryptosurrencies in his projects. He may use blockchain but without cryptos it won't affect the common users like us.