Is it really wrong to take kids out of school when they are only 7?  When they are in all the top groups and doing really well?

My son has just been on a skiing trip with his Dad in term time.  Obviously this was unauthorised by the school and understandably so but he’ll have a black mark against his name.  But what would he have really missed? So he didn’t drop behind I requested for some work to be put together for him to do whilst he was away.  Now it wasn’t done on holiday but on his return and do you know how long it took him - 10 minutes and all was done correctly with no help from me.  So if that’s all he missed I reckon he probably learnt more in a weeks holiday than he would have in school anyway!!