September 2020 means you already redshirted, he is 5 about to turn 6. On time would be September 2021, about to turn 5. So you have to send him.

I would go ahead and red shirt the sister too. Having them in the same grade is asking for life long issues. You already made the decision that youre OK with your son being the oldest, so do the same with your daughter.

Anonymous wrote:

Anonymous wrote:I would redshirt them both.

You would send a September birthday to Kindergarten at 6 turning 7?

I think your calculations are off? I read this as both starting “right as, or right after they turn 6”. Which is not all that unusual.

Beyond that IDK. But I definitely would not put them in the same grade. Either redshirt both or neither.

I have a September birthday girl who started on time. While she's short, she's always kept up socially and academically. Red shirting her would have been a big mistake.

Now from a sports perspective it may end up being a pain.

Anonymous wrote:I would redshirt them both.

Same

Send them both on time. They will be fine.

Anonymous wrote:I would redshirt them both.

You would send a September birthday to Kindergarten at 6 turning 7?

Caution that District of Columbia just made clear no more redshirting when just parent choice (even some doctor notes being said no to). Ask 2 questions, 1) are both kids ready and 2) can you pay 2 college tuitions all 4 years or would it be better to only have 3 years where would have overlap?

I would redshirt them both.

It seems obvious that OP is in a place with a 9/1 cut off, so the question is to red shirt the daughter or not. The son obviously needs to go on time since he'll be almost 6 at the start of Kindergarten if he does.

I think OP needs to make the decision for your daughter that's right for her. If her development is such that redshirting might make sense anyway, then the sibling thing might be a deciding factor, but if she's clearly a kid who would go on time otherwise, then I'd have her go.

I would treat them individually and follow the rules for each of them entering school on time.

Inverse of this: I’m the girl twin and have boy twin. Same birth date, not Irish twins. We were born in late August and should have started K when we had just turned 5. My brother was not ready for school (academically or emotionally) but I was already reading and very much ready. She held us until we were both 6.

I was out of sync with my classmates until HS and it was a bad choice. My mom often says she should have separated us but didn’t know how to deal with the comments and how it would have made my brother feel. I was way ahead of him even when we started late so it’s not like he “caught up”. We were always compared to each other anyway. It would have been healthier for both of us for my mom to have been less focused on how things looked or convenience and more focused on us as individuals.

I agree with the PP who said that if different grades can’t happen, they need to in different schools.

It's fine, we have friends in this situation (the older child is good friends with my daughter) and the parents said they're happy with their decision. People always ask them why they didn't "redshirt" their son, but she says he was ready for K so they sent him on time. No issues. They haven't been in the same class yet (about to start 4th and our school has 3 classes per grade).

Anonymous wrote:Do not put them in the same grade. It’ll be competitive forever because girls mature faster and might pass up your son, even though he’s older.

Start your son in K at age 5 about to turn 6 (right?) and the daughter the next year.

This ^. If your district allows redshirting, have your ds do PK4 this year and your dd do it next year.

I would absolutely NOT put them in the same grade, under any circumstances. I have twins (boy/girl) in middle school- and while obviously it is normal that they are in the same grade- I would say there are drawbacks. Constantly being asked if they are twins (normal of course) as they get older, a lot of social overlap (which they both find a bit annoying) and comparisons which aren’t lessened even though they are boy/girl.

Not to say it is all terrible, and with twins what else would one do…but seriously, it is not something I would ever do on purpose with siblings a year apart. There will be also be a lot of questions as they get older about them being in the same grade and why, and one or both may find that very embarrassing. People will be very curious since they are not twins.

Definitely don’t.

EVERYONE is going to ask them and you if they are twins and all of you are going to have to explain it every time! ANNOYING>