Where maintenance payments are made, day-to-day decisions about how that money is best used is the responsibility of the parent who receives the payments.
However, if you have agreed a financial arrangement with your spouse, this can include payments for specific items that you would like your children to have — for example, school trips, laptops, etc.
Regardless of any maintenance payments you make, your ‘parental responsibility’ for the child does not end when you divorce. This gives you the right to be involved in important decisions, such as where the child goes to school or in the event of serious medical treatment.