Is it realistic to want skilled immigrants at the age of 30?

You have no problem going to Canada. If you are single, you need to think carefully about four 7 points (this result is more difficult). If you get married, it will be much easier. If your spouse's college or undergraduate degree can give you 4 points and your master's degree can give you 5 points, then the IELTS pressure will be much less.

I'm 30 years old and I'm in the process. Age is not a problem.

Good luck!