People can talk to strangers

Do you like to talk with strangers? I think that it depends on the person, but it's also related to their culture. I live in the US and American people whom I don't know often talk to me. I often see people talking with strangers in the same elevator, and I often see customers and cashiers making small talk at stores. They compliment style of strangers on the street. It looks like they could say whatever they want in any situations. They are just chatting rather than talking about very important things. They seem to enjoy it, or at the very least they don't care.
On the other hand, Japanese people don't talk to strangers unless it is necessary such as asking directions or other questions. They even think that talking to strangers is impolite sometimes. They think that it bothers other people. Perhaps they don't want to interact with other people? Or they are just nervous about it? I don't know, but if you started a conversation without a reason, it might be weird and make them uncomfortable.

What do you think? Which do you prefer? I like a culture which is allowed to talk with strangers freely, but... I'm actually nervous about it. It's conflicting! I am trying to talk to people. If I meet you by chance, can you talk with me??

What do you think about online dating? -different perspect between the US and Japan

Online dating is getting very common here in the US. Many of my friends are using or have used it. We often talk about online dating openly. If someone is looking for a partner, we recommend that they try online dating. Some people still say that it's not natural, but I think that it is one of the ways to meet people in current society.
On the other hand, it's not common in Japan. Many Japanese people think that online dating is bad. I think one of the reasons is there are a lot of bad news about online dating and people think it is dangerous. They are afraid that

I had been using online dating, and I found a nice partner through it and have been getting along with him for a year. There is the only problem when people ask the question how we met each other. I don't want to say the truth to Japanese people because I'm afraid they think I don't have a moral. However, my boyfriend is an American and does't know about my feelings at all and says the truth!

Oh well... No one cares how we met each other if we are doing well now, don't they?