Tesla and SpaceX CEO, Elon Musk, claims he is not actively involved in cryptocurrencies despite his public support for Dogecoin (DOGE).Musk's declaration contradicts his previous involvement in cryptocurrencies, especially his support for Dogecoin.Potential reasons for Musk's reluctance to engage in cryptocurrency include previous legal challenges and lawsuits related to promoting DOGE.Although not actively involved, Musk's companies, Tesla and SpaceX, still accept cryptocurrency as payment and hold significant amounts of Bitcoin.