[baroffoos]

Its still absolutely critical for almost everything. Some use cases:

* My code depends on this value always existing so make this not null * My code is doing math on this value so make sure it is always a number * This record belongs to other record, make sure other record can not be deleted while this one still exists

Modern computers change next to nothing with the need to validate data. The worlds fastest computer wont tell you how to add a number that doesn't exist.