I'm afraid you are too much optimistic. Someone who has kept Dogecoin for several years can surely say that it is a joke coin for him. However, if you think this is a good investment for the future, you better play roulette because you will probably have less risk there.
Many people are optimistic about Dogecoin, probably because they don't know anything about it. Developers only created the coin as a "joke", meant to be used for fun or as a speculative instrument. Bitcoin and Ethereum are far more serious cryptocurrencies, with a proven track record of development and innovation. Since people are following the DOGE hype, they don't really care about this. All they care about is to make money in the least time possible. The "get rick quick" sentiment will only leave many newcomers broke in the long term.
Ultimately, Dogecoin will survive as long as there's a community backing it every step of the way. Prices may go down the drain, as people move on to the next big thing in crypto. What matters is decentralization. As long as this is prioritized in the crypto/Blockchain space, nothing else matters. Just my thoughts
