I do think that's true. Especially for dad. He never talked to us about emotion but he would at least show emotion very easily so I could eventually figure him out. For mom, I don't think it was the times, it was a result. She lost her mom at 16 and she never ever ONCE talked to me about it till about 65 years later and one night she just burst into tears and said, I'm so glad I got to see you girls grow up. That's it but I knew what she was talking about. Never once before that in all my life had she given a hint how much she still thought about her mother.