To help one feel needed and also evoke one to obey his laws.

This to me sounds like the believer is feeling a form of inadequacy, having a need to feel needed, and, also, to obey God's laws, to me, places me in a position of personal weakness, removing from my character, the ability to choose for myself what is right and good. I feel stronger in having an alliance with God's love, rather than a servant role. The perspective that God is my friend, not my master, changes the dynamic of the relationship I feel with God. No friend would demand that I worship them, nor would a true friend seek to punish me for common human mistakes.

The reason is based in history...ancient people and their survival, not psychology. Well, unless you might say that there was something psychologically appealing/believable for ancient people to see God as a male, a great father.

Our present perspective about historical male/female gender roles appears to place the male in the stronger position, being that, it was the male gender whom braved the fierce beasts hunted for food. Could that be why it is commonly thought that males are the strongest of the gender and so, for that reason, Gods' gender is assigned a male role? Again, such thinking appears to me to negate the positive traits females possess.