I grew up in the 90s and I remember being able to truncate the year down to just 2 numbers when talking about years within the current millennium. It seems like we’re still saying twenty before every year and I’m just wondering when that will change.
You can totally start now. Although, and maybe this is just a me thing, I’d feel like a massive bellend if I referred to something that happened in, for instance, 2021 as “in '21”.
I think I’d feel okay with “'01”, through to “'09”, then the teens feel weird again but only because it just feels weird to refer to a year as small as like… “'13”… although I don’t have that same problem with the naughties, maybe that’s because of the added “oh” making it seem like more than just a number? And then the twenties feel like big enough numbers to abbreviate but, yeah, again, I’d feel like a tool.