Oh so now a May (foreign) holiday, not just peppa pig
Drip drip drip drip 😂
That was mentioned pages and pages ago 
There are some posters that seem quite unhinged and there is NO way it is because they were left once at 18mths,2,4 etc. No way. There are unresolved issues and whether it is from crappy parenting or whatever, it makes their posts pure projection and that, in itself, makes the opinion invalid.
There is nothing worse than a mummy martyr and what is truly awful about them is that they don't realise the potential damage they are causing their own children.
Pretty sure we are all selfish at different times. I can pick the self flagellation experts a mile off.
Left kids out many times for many reasons depending on the activity. Sometimes I simply don't WANT to take the youngest. Rather than her being ageneral inconvenience and unwanted child, I occasionally do find it inconvenient to take her to certain activities/events. Easy to navigate and no reflection on how I feel about her and her place in our family. A good parent can manage this without scarring for life as seems to have happened to some here. I'm truly sorry for that
And no matter what, I find that there definitely IS a touch of jealousy in some posts and from some posters. To have the kind of family set up the OP has and many of us do have, with truly amazing gparents and extended family who WILL absolutely ensure that the little one does NOT have negative memories is worthy of envy.
The knowledge and security of having that v not having that is probably closer to why there is such a division.