Tish I agree with you there. I think many people assume that term time absence is about families getting cheap package deals alone.
Many people, as you say, work seasonally or work in industries where their peak is during the holidays. There are people who have their holidays set by the company they work for. There are people who couldn't get time off work because everyone on their company or department has children too. Then the folk who have to keep their holiday entitlement until the last minute incase their company has an enforced shut down and they need to use their holiday for that or face not being paid.
I entirely agree as well that asking for permission to take your children to a funeral makes everyone almost at the mercy of one professional who essentially now has very little room for maneuver .
I appreciate this is going to sound like it's out in left field but, how does this not contravene your rights to a family life? I appreciate this would only apply to a small proportion of families but if both parents work, maybe alternate shifts, weekends too, one or both has a set holiday pattern, they might never even get to spend a few days together out of a whole year if they could not take a week during term time.
If the right to a family life can keep a random criminal in this country* because his auntie lives here so can't be deported, why can't it also support families in spending quality time together as a whole unit assuming that a child has a good attendance record generally?
*I appreciate that is a crass over simplification and all very daily fail but hey ho - smuggled immigrant yoghurt stole my pension twice.