AIBU to not buy my best friends children every birthday/Christmas?

[Kittyteaa]

Met one of my best friends a few years ago and been so close ever since, she had 3 children then and is now pregnant with a fourth( I didn’t know her when she had these children!) I don’t have children and I was wondering what’s the right way to approach this? I will obviously buy the new baby a gift but do I continue this? Is it unfair on the others? What would you expect? Thanks!

It's quite normal here. I wouldn't turn up with a gift for baby without a gift for siblings, just something small but not to leave them on the sidelines while baby gets all the fuss.

I don't know what you mean by "where does it end?" It ends there, that's the extent of it.