Oh OP, i hope you still come here! LOL.
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I'm in the UK, and i'm a SAHM mostly (i do work very very occasionally) and i didn't use nursery for my eldest and probably won't for my youngest.
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I made the choice NOT to work (and lived on benefits) in order to be at home with her when i was a single parent (XP was also unemployed so it was hard yards for a few years, financially), because i believe for my family that was the best idea.  I didn't send her to nursery  because when she was 3 i felt she was far to young to be away from me (every kid is different, but that was my feeling).  She also had some sensory integration problems especially with other children's screaming - i did NOT think nursery was a good bet for her because of that!  We moved house 3 times the year between her being 2.5 and 3.5 and i wasn't going to move her around into different nurseries (i went to 5 different schools and vowed not to put mine through it if at all possible).  By the time she was 4 her issues with noises were waning BUT a tiral dance class revealed she was still unhappy to be without me even for a short time, and her little sister arrived right before she would have started and it would have been a very prompt "here's a new baby, out you go now!" for her, which knowing her personality i knew would be a very bad idea too.
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We went to groups, parks, museums, hung out at the library, saw friends, worked our way through the toddler and preschooler busy-books...i liked it. Â It was full on but it was fun. Â Because i'm in a blended family i do have XP helping out and at least 24 hours a week when she is with him and not me - that was key for de-stressing and getting some me-time (right up until DD2 arrived, lol). Â I sympathise with the lack of patience one mama described which made SAHMing hard - i suffer too, my patience is WAY WAY better after nearly-6 years, but i still have a bunch of room for improvement!
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I do think for some kids and families nursery probably has enormous benefits, but i didn't feel it would for my kid or my family. Â I too have been treated like a subversive maniac for not putting her in nursery (one guy told OH she would NEVER NEVER learn to read because she'd not begun her education at 6 months, when both of HIS kids did! Â OH was like "oh, well, she can already read" for which there was no response). Â A HV came when she was nearly 3, expressed shock that i'd not signed her up for nursery education anywhere and said "she will definitely suffer educationally if you don't do it" while DD was stood behind her with a number chart the HV had *just* given her saying out loud "63-64-65-66". Â I was thinking, lady, are you for real!? Â All the mums in the school playground are shocked too, and there is this sort of inference that not going to nursery meant i kept her in a fish tank for 5 years and she never went anywhere, did anything or met anyone because she wasn't at nursery!
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DD1 began school in August last year. Â Aside from a few social problems with one individual (who three other kids, all nursery educated, also have trouble with) she has positively thrived. Â She was fine being without me right from day 1 (something which many nursery-educated kids were not fine with - not proof of anything of course except that nursery will not necessarily pre-empt and prevent potential school-related separation issues), she was educationally at or ahead of where her nursery-schooled peers (she was the ONLY non-nursery educated child in the year) were and has excelled educationally, she has tons of friends and enjoys herself. Â I have no regrets about the choices i made for her. Â I'll assess DD2 as i go, but all things being equal unless i see a positive reason for it i will probably keep her home with me until school too.
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I really think in the UK the push towards nursery education has been primarily about the economy, the government wants EVERYONE in work because otherwise they'd have to do something about the fact that the average wage can no longer support a family as it used to. Â I too hear the remarks about how "children NEED to be with their peers!" all the time. Â Why? Â Because in evolutionary terms humans typically have nonuplets so our poor modern singletons are missing out on not having 8 more same-age peers to hang out with? Â No. Â Kids need contact with other PEOPLE, of all ages. Â So long as your kid gets contact with other people, preferably loving people who are interested in them and kind to them, they will do great. Â How you choose (or become or provide) those influences is up to you.