I think it's very difficult or even impossible, because in my opinion dogecoin is just a meme coin that doesn't have utility like other altcoins, my advice is to invest in coins like BNB and ETH, both coins are more worth buying.
imma go ahead and say it, it is impossible for Doge to reach $20k not just in 5 years, Doge just can't make it that far, there is just no way, its marketcap would be unbelievably high, it's just a meme coin, people can try to make some profit out of it and sell, it has no other rational usages.