Mum and dad split up- Mum moved 5 miles from joint house (15 min drive) Dad moved 12 miles away (40 min drive)
Mum has child Monday after school- Friday school drop off.
Dad has child Friday after school - Monday school drop off.
Dad does 100% of picking up dropping off as moved further away.
Dad pays maintenance to Mum plus splits costs of child related expenses- ie. uniform, school trips etc.
Is it unreasonable to expect Mum to share car journeys occasionally? Or is it entirely dads responsibility?