I talk to my (Indian) parents every day, even if it is a 1-min courtesy call. Started when I went off to college in a different city. And it's also a rather common thing among everyone I know regardless of social status. So, I guess what is typical is dependent on country or culture.

> Is calling your mother several times per week typical on your country?

Yes :-)

My family is half European half South American. I call them almost every other day. On a busy week, perhaps I'll only call during the weekend.

My Taiwanese wife calls her mom every day.

I'm not American and I call my parents maybe once a quarter other than birthdays and days like today. Your point?

I didn't have a specific point to make, I'm just trying to understand the world around me better.

Even if you think it’s more cultural there’s no denying that immigrating to a new country at least partially conforms you to new cultural norms specific to that country.