Glad to read that your father enjoyed himself and his time with you - especially at the range.
It always seems that the first few times you do something new nobody else does it and you get the feeling you forgot to put on your pants or something because everybody is looking at you. Then you realize that while they may be looking they are not fainting/running away in horror/dialing 9-1-1. Then you begin to notice other folks doing the same thing as you. Pretty soon you might notice folks talking to you about carrying a gun and even asking questions about you carrying, them carrying, and how to tell a Glock from an AK-47 when it is in the holster.
I find I become more frustrated with the folks who want to share that they have a CHP and a gun back home in the safe than with anybody else, including the openly hating haters.