If Tesla really accept DOGE, this is huge that will affect cryptocurrency market, then they will looking for others alternative crypto because alot of others crypto better than DOGE. Others big company also will follow Tesla to accept crypto as payment of goods and services, so use case of crypto will increasing high.
If these big companies invest in crypto tesla is a big company, then the price of currencies will go up a lot. The crypto market will develop as the value of currencies increases elon musk is currently having a bad impact on the market he lowered the investment rate through his tweets.