This is an otherwise thought in contrast to your topics title.

Some people think Bitcoin adoption could increase if CBDC is introduced into individual countries because some people can know about cryptocurrencies  through CBDC and result to them knowing about Bitcoin. But I still think otherwise but not certain which would be which because I believe some people are not literate or not literate enough to know how to make use of cryptocurrencies. But this is not related to bitcoin scalability, and know that Bitcoin can not go priceless, it will surprise you when all-time-high will be attained again.