Though uniquely customizing a Bitcoin address could go a great distance. Since it lets us to get transactions properly and lowers the likelihood that a 3rd party can modify our address and replace it with another. About "How come we need an present account to build new accounts", listed here https://eth-vanity-address-genera53185.blogdeazar.com/29048841/the-fact-about-tron-vanity-address-generator-that-no-one-is-suggesting