For those who have kids, is it better to let your kids believe in Santa and all the other things or is it better to not do that stuff with them?

I've been thinking about when I become a mom and if I should have my kids believe in that stuff. Sure it's fun but it's also not real, I feel like as someone who grew up believing I think I'd rather them not believe in something that's not real like that. Would that be so bad to not do that kind of stuff with my kids? Ofc I'll still do stuff with them on holidays and it will be fun but I'm not sure about leading them to believe in all this stuff as a kid.
For those who have kids, is it better to let your kids believe in Santa and all the other things or is it better to not do that stuff with them?
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