Why do people think it's acceptable being negative about wanting lots of children?

[MrsVidic]

Hi, I am 39 weeks with dd 2 and I'm 28. Dp and I have had the number of children discussion the other night and have decided to try for a 3rd after we get married and 4th a few years later.
Anyway since chatting with my parents/ family etc about this I'm getting really pissed off. To start with I only mentioned number of children as we will be looking to move to a bigger house ( only have a 4 bed ATM) to accommodate.
My parents only had 2 dc and it seems everyone trying to dissuade us has no more than 2 dc.
Our close friends with 4 have been really supportive etc.
It seems to be people think they have a right to be negative about your plans if you want more than 2, that it's ok to remark on what is not really their business.
I've had comments regarding we'd be mad to move just to have more children, it will be too expensive- I work pt and dp has a good safe job.
Maybe I'm hormonal but I think if your a grand parent you should be happy at the prospect of more grand children?

Have not read the whole thread, but my 2 main reasons for being internally negative (I seriously doubt I would ever voice my opinions to anyone wanting a large family):

1. Can you afford them?
2. This place is getting crowded.

I don't think anyone has the right to have as many children as they fancy if they cannot adequately (without state assistance) support them. And I think the world (well, our corner of it anyway) is a bit full and environmentally and socially it is a drain on resources.

Someone asked (probably rhetorically) whether people consider the global population when thinking of having children. I think they do actually...

But still, global population matters much less than whether you can sustain a large family. I have nothing at all against a family with 10 kids if all 10 kids feel loved, are well cared for, do not live 3 or 4 to a room, etc, and do not survive on state handouts. I bet everyone saw that documentary a few years ago about the man with 20 kids, with a 4 year old in nappies, and a kid that slept in the hallway because no one put him to bed, and no duvet covers on the duvets and god knows what else. It would be horribly unfair to tar everyone who wants a large family with that brush, of course.