Part-time entry or delayed entry to reception anyone?

[Authenticity2020]

I have a summer born child who has experienced developmental delays and for various reasons I am considering:

a) delayed start to Reception (where the child then starts full or part time in the year) but they just start by April
b) part time Reception for part or all of the year
c)delay starting for the full year until child is aged 5 and then goes in full time.

does anyone have experience of doing this?? If so, how has it impacted things and are you glad to have done it?

At the moment my kid naps and needs that nap and I know some nap till age 5. Anyone send their kid part time until naps are dropped?

I have a relative who was in one of the first years where you could hold a summer born child back - they're now in Year 5 or 6 I think and haven't experienced any problems with bullying, they're about 3 weeks older than the next oldest child in the class and not the tallest or biggest.

Are you willing to support his learning with phonics and maths at home?
If so, I would keep him in his normal cohort but send in part time possibly full time towards end of the year.

Why? What would be the benefit of being the youngest, already experiencing developmental delays and missing out on the play and social side of the first year?
vs.
Being the oldest, at a more equal developmental level with peers, an extra year of playing, building motor skills, hand strength, stamina, speech and social skills and going full time?

@Authenticity2020 my daughter was nursery already and I just adviced them she should be continuing for a further year.

I feel the reason I gave was just to fill in a blank space as they didn't question it in anyway.
My child was born on 30th August due to being induced over concerns in pregnancy. She was due in sept. My "argument" was due to being induced it caused her to be born into the wrong year group. She wasn't classed as premature as born at 37 weeks.
Telling them this was all they needed, didn't question it or ask for evidence of anything.

Thank you to everyone who has given their thoughts and opinions sorry I haven’t replied to everyone yet, I will try to do that when I can.

Consensus seems to be NO to skipping part of the year option a. Which I agree with completely.

Small minority proceeded with child going in with normal year group and fine with that. Slightly larger minority proceeded with child going in normal year group and regret that.

Mixed opinions on part time, works for some and others think could mean some things get missed. Important to work closely with school if doing this. This perhaps works as a gradual introduction, perhaps on a short term basis? Because otherwise Y1 may be a big jump and they could miss on academics, the fun stuff and socialising. Often cited as a less preferable option, but still something to consider if child is in school and struggling.

Vast majority suggest defer a year for delays + summer born. No real downsides cited.

Currently minded to wait until end of the year and assess where DS is by asking his teachers and then speak to headteacher to assess options. Then make applications for school and review as time goes by to either delay by a year (currently looks that way) or, if DS catches up quite considerably (a lot can happen in a year as a PP has said) and seems ready, could still look at doing part time hours for the first half term or so to ease him in.

But good suggestion to increase nursery hours in final term to increase stamina before school 6 hour day. That will also be a good indication of readiness because if struggling in July with a full day, most likely will do two months later when academics crank up a notch.

Thanks also for Facebook resource which I will look at.