Tough question there Balstrome. As I shed religion I thought that I would have a difficult time with my parents as they got older. My mother was raised as a German Lutheran, and my step dad is Catholic. Surprisingly they haven't really pushed me on religion. My girlfriend's family, on the other hand, are mostly Baptists who are YECs and completely focused on the end times. I cannot talk to some of them at all, and it isn't just the older folks. She has cousins who are the next generation of hardcore bible thumping spirit filled Jesus freaks. Her parents and grandmother have come to accept me. I think it's because I tend to handle responsiblity reasonably well.
When they do try to rope me in to their ways I just explain that I try to base my life on logic and reason.