My DD’s class goes on school trips quite frequently and it’s pretty much the same ~4 parents every time. I’m usually not available, but the one time I was it was full by the time I messaged the office to volunteer.
I just found out there is a school trip on DD’s birthday. DH checked he could rearrange his schedule to attend but now is being told all the parent slots are full.
Would it be reasonable in the class WhatsApp group to ask if one of the regular attendees would be willing to give up their spot for him?