Do you think your own upbringing influenced this? (having an active father, being adopted, having no father etc).
I've added a poll - please comment with what you selected and your reasons!
I grew up with no biological father and I'd have no hesitation using an anonymous sperm donor to conceive (and I will be!) because for me, biology means squat, moreso since trying to contact my bio-father and getting no response. But I know others who were in the same situation as me and feel very much like they have a 'piece missing' despite an otherwise happy upbringing.