We've never been precious about the dcs spending time with the ILs or letting dcs go away with them on camping holidays from an early age.
However, MIL has rung dh this afternoon and told him FIL had tears in his eyes because I've said no to dd(aged 3) going on a camping holiday in May because it will be her 4th birthday during that week. I have said we'd happily let dd go any other week prior to next Sept (the ILS are retired and take a lot of holidays) but the dates they have given me (because they get a cheap deal at a certain site) are the week of her birthday and the 2nd week of Sept when she starts school!
They did exactly the same last year, when for months they talked to dd about going on holiday, got her really excited and then revealed the dates: the week of her 3rd birthday. I didn't have the heart to disappoint her and say no, so she went and had a nice time, but I was gutted I missed her 3rd birthday and said to dh it wasn't going to happen again - hence asking for the proposed dates in good time.
ILs have told dh we can celebrate her birthday at the weekend, she won't know any different, and because her birthday falls on a day I work she won't have to spend part of her birthday at "horrible nursery" (another issue in their minds) despite the fact she loves nursery and I will be home early to collect her.
So AIBU? Dh & IL think I am. Will take any views on the chin!