Stamps on RSVP?

Hi. We included an envelope but no stamp. And we've Had 3 comments so far about not including a stamp! !

I know it's not for everyone but we're having call/text RSVPs. I'm notoriously bad for posting things and I imagine other people will be too so we've just put our numbers at the bottom of the invitations and said "please RSVP via call or text to...". I'm hoping this means that people will have no excuse to delay RSVPing! This also means I can ask for table drink preference in the same conversation rather than chasing everyone up afterwards x

I put in an addressed but not stamped envelope. most people have commented that we are generous to include the envelope!!

It seems really generous to me to include a stamp! I think I would notice more if an RVSP included a stamp than if it didn't. Definitely nothing wrong with call/text and email either.

I put stamped addressed envelopes with ours and we got them all back - and on time too!

Our RSVP's were pre-printed on a postcard shaped/sized card. I didn't include stamps, but in the corner we had a box that said 'Please affix stamp here'. No need for an envelope.

We got most back, or people called, so I don't think you need to incl stamps. I've never received one pre-stamped!

We incuded an envelope but no stamp, we gave the option of replying by email and text too. I was really surprised everyone bar 2 posted theirs back and on time. no one complained about there being no stamp. X

We're including a stamp, but only because we got bought some personalised ones

We included a stamp on some of ours....people who lived further away, grandparents etc but friends and people we see regularly we didn't. We also gave the option to rsvp via text or email. We haven't had any comments from the people who didn't get a stamp

We included stamps but shouldn't have bothered, we are still waiting for 3 who clearly can't be bothered to walk to the post box !!