Personally I won't be building a big story around Father Christmas although I'm sure LO will still enjoy the 'magic' of him e.g. when he comes to nursery and so on. But at home I don't think I'll say presents are from him or so on.
I never believed in father Christmas since I had an elder brother who told me, but I still enjoyed Christmas!
Basically for me, Christmas is about showing the people you love that you love them. So that includes visiting family, having special food with them, and getting them little things to say thank you for being the lovely people they are.
I'd like to make a big tradition with Joni in the run up to Christmas- choosing little gifts for the people she loves (granny, grandpa and so on). Could be home made, bought, anything- just something we chose together that represents our love for that person, could even be planning a special cake for them when they come to our house at Christmas.
And, she'll learn that the people who love her will also make Christmas special for her. So they'll buy her little gifts and do things she wants over Christmas. So, I guess if she wanted to go to Santa's grotto, I would take her. But we won't be doing the whole santa fairytale at home.
Even as a small child I took such pride in choosing gifts for people, it was genuinely fun. And it isn't just about the presents- it's about doing something that person will love. I loved that aspect of Christmas, and still do. People get so much pleasure from giving their children presents and I think children get a similar pleasure from giving their families special things. So, I genuinely think that Father Christmas would impede that.
I don't really get the whole, "You'll get presents if you're good" although I know a lot of people don't include that in their version of Santa. I buy gifts for Joni because I love her, so that's what I'll tell her. It's nothing to do with being good or naughty.