I think some say it's important and some say it's not important.
That's my opinion, back to each person's taste.
whether altcoins or bitcoins all have their respective roles, in my opinion.
It's up to us to see what it's all about.
for me it’s definitely important as it eases a lot of things in the market even if you don’t use altcoins and you don’t find them important, it still has its own purpose and plays into the market more than you think it does
altcoins are options that offers faster transactions and cheaper fees compared to the top cryptocurrencies like btc or eth it is also relatively cheaper in general and there are a lot of kinds of altcoins that serve purposes that btc can’t