Whether to use them or not. Petty endless debates over their benefits and drawbacks. Literarily for as long as i worked with php devs in all teams there was someone debating this pattern. As php is not strongly typed these can help with data type validation, can perform some logic when setting values, while others say it’s inefficient as thats an unnecessary method call, or that no logic should be performed in them. Some prefer to use magic functions instead of setters and getters others are against it because it makes the code difficult to maintain, some say they should only be used for data entities, others want to use them for every property, some prefer them because you can rename properties while maintaining external accessors, others against then because of consistency, some argue over what naming convention is best, some want to persist data in some type of storage when making updates, some attach observers to them and so on.

Bottom line is that the language being so flexible, unassuming, and swamped by needless features almost everything can be debated the point of exhaustion.

Python, being more straight to the point and not overkilling oop allows for more focus on doing what matters: business logic.

class variables can be typed now though, so the data type validation argument doesn't hold at least for basic type system validation