Can someone explain me why whenever SQL is mentioned then always somebody talks about SQLi? like query parametrisation is supported by everything, database use

Can someone explain me why whenever SQL is mentioned then always somebody talks about SQLi? like query parametrisation is supported by everything, database user can be read only additionally if you want to go hard, then you can always compare ASTs generated query from user with query that's exposed by that endpoint Why SQL Injection is still a thing?