At the moment, there are already platforms like youtube that are supposedly decentralized, but they are little known. It's just that the time has not come yet. Too few people know about the blockchain. But Im sure that in 10 years, decentralized platforms will gain immense popularity.
This time taking feature is not unique to crypto only. Every business takes time to become fully productive. Crypto is still much better than others as it has shown a considerable progress in very few time. Even after 12 years of its production it has attained a strong value and larger attention in the market. It will become more popular and valuable in future as its value is increasing constantly.