Actually it's just the right time for you to build up a village!

Now, remembering that a village isn't free babysitting, it's about being a part of something related to you and the community you live in. So with DS heading off to Kinder/Pre-school, he will be off making friends and you will meet the mums and have chats at pickup/drop offs. Pretty soon he will be saying "can xx come to my house and play?" and you say oh yeah, great! Then its his turn to go visit (and you get free time!), then you discuss with the other mother how much stinking housework you got done without him there, then she says the same etc etc etc.
One day you may be held up and won't be there in time to pick up DS and you know you can call on someone to watch him for awhile and you breathe a sigh of relief and smile because you have your village to help.

You get me? Then all through Primary School there will be after school playdates, birthday parties and you will end up getting to know lots of other parents and you will end up really clicking with at least one of them. Then they are old enough for 'sleepovers' YAY, and you get more time. Then you do a sleepover at your place, then maybe YOU might be called to pick up xxxx after school 'cos mums gone into labour, and THEY smile because they have their village for help.

THEN - 5 years down the track DS is at high school at he wants to go to some party that everyone is going to, but your not sure about it. Then you find out its a xxxx's place and even though you haven't seen his parents for awhile you remember that they were pretty strict and not likely to serve alcohol...or at least have their phone number to give them a ring and find out without a problem at all. OR you are just not sure to allow him to do such and such and all the other kids are allowed to, its wonderful knowing you can call another parent involved and discuss it. Feel me?

I don't think having lots of kids discourages participation, I think it broadens the scope of the village and the opportunity to make more connections, having built relationships back 17 years ago when DD1 was little - I still have some of them now! It's fantastic
I am building more village now DS is at Kinder, and will make more when DD2 goes.

Its actually one of the main reasons I stay at home (broke off my arse) because I have the time to build this up and get to know those kids and families in DS's lives. Lifelong stuff!