1) If you had to go to Church to learn to be respectful of those around you (i.e. neighbours) then I should be slightly concerned, no? That seems to be the most obvious thing a human should do. This makes me wonder, what if you missed a day of church and didn't learn of thou shall not steal? or not killing? Would you be performing those acts if you didn't go to Church?
2) Holidays now have nothing to do with religion for many people. I hate the question, "well don't you celebrate Christmas?" Well it is a national holiday, meaning I can't go into work. I do get to see friends, family and have dinner with them since everyone is free to hang out. This leads to playing games and talking since there's nothing on tv and guess what...I just had a good time. I repeat this every year, so am i celebrating the holidays? Yah. Does it have to do with religion? No.