Hi,
a few posters have mentioned how much their DC came along socially during reception. Now it is important to remember that they also grew a whole year older in that time! They may have become more confident/whatever DESPITE going to reception, rather than thanks to.
I'm not saying that reception cannot benefit kids socially. I just think it will only benefit kids (socially AND academically) if they are ready for it.
DS has been in reception for 4 weeks now. He is loving it and seems to be having a great time. And yet. He is extraordinarily tired when he gets home. Which leads to types of behaviour we have never before seen in him. And there is literally NO time to deal with anything, e.g. anxieties around friendships, anxieties about his great-grandmother who is dying, anything. It has got to be: Walk home from school (get some physical exercise in), snack, read school book, 30 minutes downtime (he is no longer able to entertain himself, he is too tired), supper, bed.
My DS is August born but I have heard several stories from friends who have older-in-the-year kids. They are also seeing atypical behaviour, extreme knackeredness, nightmares, trouble sleeping, newly appearing separation anxieties.
The social side of reception is a huge, steep learning curve. It manages to unsettle children who are perfectly healthy, securely attached, old-in-the-year, have 4 years of full time nursery experience... Most of these will get through these hard, hard initial days/weeks and will be fine at the other end. Some won't, or will be unnecessarily set back. And what about a child who starts without a secure attachment, emotionally young, etc.?
All these experiences of 'DC struggled at first but was fine and came along amazingly in the end' need to be taken on board cautiously. a) your DS has a different starting point which might make the 'in the end' part not work out. b) they might have done amazingly even without going to school, just due to growing older/more mature. c) Sometimes they struggle initially because they are being made to behave in ways that suits school, rather than suits a 4yo. Just like a child might stop screaming/clinging at nursery drop off, then everyone will say oh look he is fine now. But actually he might not be, but has learned that there is no point in trying to get your own, real needs met. IMO kids who 'settle' into school after a difficult start may in some cases be doing the same thing - it is not really that school now suits them, but rather that they have given up.