Bus seat etiquette
Is it expected to give up your seat so a group can sit down together, if they don’t otherwise meet the typical characteristics of someone you’re supposed to get up for (elderly, disabled, pregnant, etc.)?
For example you’re seated on an otherwise empty row of three seats, a group of three gets on and two of them plop down on the two unoccupied seats next to you.
Edited to add context: it’s not something that had ever occurred to me before but the “expectant” body language of the group I encountered on the bus this morning made me wonder. All four of us appeared to be around the same age/gender, if that affects things. There were no other empty seats other than the ones in front reserved for those who need them.