When DD started primary school we had a "Anyone who holds PR" form and then a list of people to contact in an emergency, my Ex lives within a mile of us but sees DD EOW so was advised to only put him on the PR form.
It's caused no issues, she's in year 1 now and the few times someones been contacted they've always got hold of me.
Hi my DD is starting reception in September and I'm filling out the contact information. It is asking for the fathers details but I don't know wether I should put them on. He has only been in her life consistently for the last year and lives 80 miles away so only sees her once a month for the weekend. He is on the birth certificate.