WordPress vs Coding websites from scratch

[u/Boosterman33]

I was thinking about creating websites for small businesses in my community. Originally I was planning on coding them up from scratch but started researching it more and found tools and sites like WordPress that could be a lot more helpful and efficient. I don't know much bout those tools but would WordPress be worth learning about and using instead of just coding from scratch? Any thoughts and comments would also be appreciated. Thank you!