Age Ranges and Twins/Triplets

You could just age them up all together, but I get what you mean. It can be quite annoying when that happens with twin and triplets.

I can't believe more people aren't complaining about this. It is a massive issue that came somewhere around Seasons (the patch before or after, can't remember).
It messed up all my saves since I like to sync my households in age and such. It is ridiculous that it happens to twins and triplets but it is also annoying with the rest. I have a tight group of friends that were friends since they were toddlers. "Thanks" to this change, now they are not the same age anymore and it is really annoying.
Yes, you can age them manually but that is not the point.

One time my sim had quadruplets(in the sims4) they were all girl's and they were little nightmares >~<

I wish two-three (mutlies) that you can have all 2-3 kids blow out the candles on one cake at the same time

I've never had this issue, all my multiples have the same bday.