My son is an August 2021 baby so would be due to start school in September 2024. I’ve recently become aware that summer borns (born after April 1st) can defer and start reception the following year, so in my sons case would be September 2026. I contacted my local council and they approved this straight away, it was very easy. They agreed he could start reception when aged 5 and not miss reception as well as not skip a year of school down the line, he would stay in his adopted year. They said this has become very common throughout the UK and local councils are fully supportive. My son has no reason to be deferred other than being a summer born. I would be interested in hearing from other parents who’ve deferred, has this been a positive experience? I guess my only concern would be, would he feel different and out of place when down the line he’d be aware he’s educated out of cohort. Other than that, I can’t think of any negatives in deferring, only positives.