From the legal point of view you both have equal Parental Responsibility
and rights to carry out those responsibilities including having
contact or the children
living with you and making important educational and medical decisions.
If living/contact/educational arrangements cannot be agreed
between you and the courts become involved a judge will refer to welfare
check list in s1 Children Act 1989;-
(a)the ascertainable
wishes and feelings of the child concerned (considered in the light of his
age and understanding);
(b)his physical, emotional and
educational needs;
(c)the likely effect on him of any change in
his circumstances;
(d)his age, sex, background and any
characteristics of his which the court considers relevant;
(e)any harm which he has suffered or is at risk of suffering;
(f)how capable each of his parents, and any other person in relation to
whom the court considers the question to be relevant, is of meeting his
needs;
(g)the range of powers available to the court under this
Act in the proceedings in question.
With regard to
background generally it is an uphill struggle changing the established
status quo and as you have only been separated a relatively short time the
pattern of work and child care before
separation is an important
factor.
If you or your wife stayed at home or worked part time
to fit around childcare commitments, took the children to
school/nursery/dentist/doctor the majority of time and did most of the
nuts and bolts of parenting such as washing the children's clothes and
preparing their meals then that parent is likely to be deemed the primary
carer.
On the other hand if you both worked full time and
shared the dropping off at
school, collecting etc equally then
shared
residence 50:50 is
indicated and it really boils down to practicalities and disrupting the
children the least.