Do you cook for multiple people (> 2 or 3)?

If you do, in what ways is it different from cooking for just 1 or 2 people, other than the obvious ones of needing to use higher quantities of the ingredients, larger vessels, more cooking time, etc.?

I've always wondered how it is different, but now I am asking not out of curiosity, but because I am thinking of starting a small catering side business.

Thanks in advance to all to reply.

Labor per portion gets better with more mouths to feed. I find 6-8 is the sweet point.

Yep, me, wife and 2 kids. Not every day though.