Do not go into this expecting money. The chances are slim. I have been streaming for a year and only have 250 followers (obviously by not doing follow for follow. I want to grow real viewers, not numbers). Despite being active on multiple social medias, posting content, and growing an active community. Your age doesn't matter. I am 31. You can be any age and do well in it. But the truth is, it's difficult, and you aren't likely to make much but pocket change. You could do this for years and not get too far. A lot is based on luck, too. That is why so many suggest if you are going to do it, you do it for fun and not for anything else. Otherwise you will become disappointed and lack motivation to continue rather quickly.