Neither of these projects have a valid use-case. They are meme-coins. Speculative gambling at best.
I’d be lying if I said I never owned any. But just a few dollars here or there. These aren’t serious projects for real investors. And they probably won’t be around in the next 10 years.
Dogecoin is old and more popular than Shiba Inu coin, I believe that's why Elon Musk is targeting Dogecoin but Shiba Inu is new and comes with some upcoming features and upgrades that Dogecoin never had, if you are a newbie to Crypto make sure you only invest what who can afford to lose just because there is no guarantee in this forum