Mum Demands Month With Dad Holidays

AITA for thinking my mum is wrong for demanding my dad take us for a month during the

holidays even though he already has us multiple times a week? My parents are separated.

On paper my mum has us full time so she receives government payments for that and my

dad pays child support including extra for holidays. In reality my dad already has us multiple

times during the week. He picks us up, looks after us, and is actively

involved in our lives while still paying my mum as if she has us full time.

When school holidays come around instead of planning things calmly my mum starts yelling and saying

my dad needs to take us for four weeks straight or she will go crazy. It is never a discussion