Thanks everyone. I'm not an only child, but I have another older brother who is also living outside the home country, and I think my parents feel we are abandoning them somehow, which isn't the case. We just have the opportunity to establish better lives.

I just wish I feel they are OK with me being abroad, and feel that they are happy. Feeling guilty isn't something easy to deal with.

If I stay abroad, I'm planning to visit them every year, and bring them to visit me, as many times as possible.