Mexicans: do you send money back to mexico or support relatives there?

Why do mexican families expect their adult grown children to now support them? Why do mexican families always complain about how hard life in Mexico is but yet have iPhone 5, satellite TV and coach purses? I'm so confused, my friend is always sending them money and they are living better than he is!

Lol I don't have iPhones or any like high-tech stuff the only things I have are from like swap meets or from garage sales and I also don't have like freakin plasma tv or satellite my family is poor we don't have that much money to pay half of our rent some of my other friends have that because they use there welfare money or stuff like that my dad and moms sometimes send money to our other relatives is because it's hard over there and they also need help and for me I will help them to but when they need it the most but we only send the cash to them when we know they need help not because they need it to buy a new xbox or whatever or like rent I know I will be supporting my family when I'm older and I know they will do the same

My parents, my aunts and uncles don't because we're poor