The tradition of singing "happy birthday" isn't much older, but I would surely say it is part of our culture!

the average person has the birthday song sung at them every year, and sings it to friends family and co-workers multiple time per year, ideally you only give/receive a diamond ring once a lifetime.

Sure. But you see people giving diamonds all the time. It's a meme, a discussion topic, reinforced each time you hear the ladies on the train discuss their friend's new "gigantic finger rock".

Just cuz you yourself are making the purchase once doesn't mean it is in a thing much of the time.

Slightly off topic, but what are some traditions that connect us to our ancestors in modern western society? I honestly can’t think of any as a Kiwi living in Australia with a Scottish ancestry and that makes me a bit sad now that I think about it

Leatherworkers still use certain tools, today, that are precisely identical to those used 50,000 years ago. They were perfect for the job then, and still are.

Not working animal skins? You could if you wanted to.

1. Smashing a schooner glass at the pub and collectively yelling "Taxi" as a visceral response (this must have taken generations to embed).

2. Keeping mental tabs on which mate always ducks out before they buy the round and making up for it at a BBQ by grabbing a beer out of their Esky. Possibly leading to a fist fight at around 11:30PM and then making up at around 12:01AM.

3. "Sorry mate" as the default response when you're unable to grab the door for a stranger because you're a few CMs too far away.

Well, there's the long-standing tradition of Anglos exploring and settling the ends of the earth... as a Scot/Kiwi/Australian, in regard to this particular tradition, perhaps you can't see the forest for the trees! ;)

Go hunting with a self bow or spear, and cook your kill over a fire. That'll connect you with your ancestors going waaaay back.

I kinda want to go spear hunting but it is illegal where I live. The only animal I can legally spear is a fish in my State an I would rather fish with a flyrod than spear.

I'm certain gender reveal parties and baby showers are not in any culture's ancient traditions.

> I'm certain gender reveal parties and baby showers are not in any culture's ancient traditions.

Well, you’re half right. Baby showers in various forms definitely are in many cultures ancient traditions. Gender reveal parties (at least pre-natal ones; there's some post-natal traditions that have some similarity), quite obviously, not.

Christianity is a big one, although that might not apply to you.

A lot of Western culture that goes back hundreds of years has its roots in either religion or the Enlightenment. Holidays, the scientific method, the individualist concept of humanism, capitalism.

Last names. The seven-day week. Learning European history in elementary school. The food you eat every day. Just a bunch of random stuff, really. Think of every way your culture differs from China or Cameroon.

In the US at least, we are relatively cut off from our immediate past. It is easier to tell people that it is a tradition and we will believe them.

"culture" doesnt mean prehistoric, since it could be seen as the collective activities of a particular time (ex 20th century pop culture. or another example is "canadian culture", which includes things like multiculturalism and universal healthcare. these things are much more recent than 1930!)