DSD is in year 10, her attendance is currently 92% and has been around this for years.
Ex never fills him in on PR bit of school form because she does not want him to know full details but he does go to parents evening with ex and she does send on reports. Every year DH has to take PR into school because every year she misses him off. Report last year showed 15 separate lateness's, she lives 10 min walk from school - ex told DH she had called the school to complain as this was not true - DSD admitted that she was late and mom had covered for her because DH would not be happy (this was admitted a few months later). DH made it known to Ex that he knew she had lied and was not happy.
Now this year as I say attendance is low again, DH has told ex he is not happy and he has told DSD, ex has told school it is due to medical reasons - DH knows this is not true. Now Ex has booked holiday in term time when DSD will be in Year 11. DH is livid as she is likely to start school year with low attendance and DH believes that the school would never give permission based on such poor attendance recently. Ex says she has permission.
Dh is torn between contacting school and then ex either cancelling holiday and kids being devastated by not having their first holiday with mom or accepting that whilst she is out of order it is their first hol together and he is only ever going to come out of this badly as in bad dad if he allows this to happen because it is his dds education - bad dad if he tries to put a stop to it.