No one should be using blockchain.com wallets because
1 )Lacks segwit so much higher transaction fees
2) History of bugs and incompetence
3) missing advanced features like RBF, lightning , or privacy features
4) Is often used in insecure (osx/windows) desktop environments. IMHO you should only be using a wallet combined with a HW wallet in these environments. If you cant afford a 50 dollar HW wallet than just use a mobile wallet
5) Is a popular wallet among scammers because of backdoor features and because it is easy to remotely setup
6) Horrible bad security decisions like allowing users to setup wallets without forcing them first to copy and verify backup words
7) History of privacy breachesF from investors
8 )Attacked Bitcoins consensus with segwit2x fiasco and never apologized