Keys = security.
I had never thought of a key representing security; always took keys for granted. Children don't have keys (or at least they didn't back in the day) and adults have keys. Simple.
For several months I was volunteering at our homeless shelter and soup kitchen. I befriended on older man. I was there for him when he wanted to talk, or needed a ride to the store or the doctor, gave him free haircuts, whatever was needed. One day his name made it to the top of the list and he was able to finally get out of the homeless shelter and into an apartment of his own. Lots of people helped him to get settled, donating whatever they could so he would have a place to sit, dishes and pots/pans for cooking, etc.
After most everyone else left he and I stood in the doorway to admire his new home. He was beaming with joy.
He reached into his pocket and, using just two fingers, he held up a single key. For a moment I thought he wanted me to lock his door for him.
He said, "Do you know what this means? This means I have a place to go and no one can keep me out."
I'll bet your father was as proud of his jingle-jangle keys as this man was of his single key.
No psychologist needed.
You are perfectly normal.
