Can たち mean "and the others"?

> メアリーさん **たち** はいつ神戸に行くつもりですか。

I know that たち is a pluralizing suffix: 私たち、子供たち、etc. But I'm listening to 2
people talking about Mary _and her friends_. I am confused by how たち is used
here.
CC BY-SA 4.0
2019-02-13T08:54:08.357
65469
2019-02-15T14:40:59.493
31549
question
suffixes plural-suffixes
The use of たち in the sentence
It is some what similar to an English word 'lot', it's not a formal word to
use, but it's not impolite either. 'When are you lot going to Kobe?' is what
it sounds like, but bit more polite than what English sounds. If you want to
be very frank and quite impolite you could use 「〜ら」, and in formal scenes
「〜方」.
CC BY-SA 4.0
2019-02-15T05:39:24.780
65505
2019-02-15T05:39:24.780
65469
answer