I don't like that PEAR by default needs administrator privileges and installs packages into system directories. That's inconvenient because you might have many

I don't like that PEAR by default needs administrator privileges and installs packages into system directories. That's inconvenient because you might have many PHP applications, and each needs different versions of dependencies. What did PEAR developers think? That I will be working on a single app for whole life? Installing libraries globally is inconvenient for developers. Sadly, most Linux package managers have same problem and do not allow you to install several versions of PHP or Node.