Innovation comes from innovative people and doesn't cease to be innovation just because such people happen to be working on an altcoin. The fact is that many altcoins have smart and creative people working on their development who are doing interesting innovative things. That's not really a function of which coin they happen to work on.
To clarify, by many I mean in absolute terms, and even there the number is probably not more than 20-30. The vast majority of the 1000+ altcoins are worthless scams. Most of those are copy-paste and don't even claim to be innovative anyway. Some number are likely scams in some sense but also innovative in some sense.
Also, it is possible to be innovative in marketing and community building. Maybe you don't agree with that, but if you think the Bitcoin marketing, community, and reputation is perfect, we will have to agree to disagree. It is no surprise at all to me that some reasonable people may like and support cryptocoins generally but want no part in Bitcoin specifically.
we will have to disagree on the word reasonable here. reasonable people do not dismiss something because of hearsays, reputation and/or other users, they do their own due diligence.
I don't see how there is any innovation in someone creating a sidechain coin "because hey why not?"
I know next to nothing about dogecoin (or any alt really) because they don't interest me much, but judging from my friends who are kind of interested in them I'll predict they'll have an OK future. Here's why:
Lots and lots of people are propagandized into being favorable to the 'sustainability' movement. The efforts which drive the movement are necessarily implemented at the government level and through public/private partnerships with so-called non-profits and such. The key is that without the government, the objectives of the movement (which are many and varied and appeal differently do different individuals) are not tenable. This translates through the neural net into the association between government and good.
The trouble with Bitcoin is that it is inherently anti-autoritarian by virtue of it's striving to be free of authoritarian control. This translates into it being anti-government and thus anti-good. AKA, 'bad'. But the idea of crypto-currencies is inherently cool which makes a lot of the progressive techie types heads start to short circuit internally like that hitchhiker in 'Something about Mary.' What do do?
Answer: Adopt a different crypto-currency. This allows the comfortably appropriate attitude towards Bitcoin (violently negative) while enjoying the 'coolness' of crypto-currency.
So, my thesis is that Doge will ride on the back of the herds of progressive semi-sophisticated 'sustainable' sheep, and those herds will be kept healthy by the powers that be (through mercury, flouride, public education, PBS, psychotropic pharmaceuticals , and a raft of other well developed mechanisms.) Make some noise about helping some of our darker world citizens in Africa from time to time and the popularity could sustain indefinitely.
Of course nothing useful is useful for only good things, and Doge would be no exception. Doge probably is useful and thus probably will be used for bad things just as is Bitcoin, USD, etc, etc. But humans are remarkable good at forgetting why they liked something in the first place (when they even understood it.) So this mal-utilization is unlikely to phase the adherents.