Opportunities are everywhere. But if you lack the knowledge and skills, it won't still be given to you. That is why you have to develop your potential skills and talents that you have deep within because that will be the key towards creating your side income. Otherwise, relying on your single job or single source of income will let you experience financial struggles at some point.
In the end, it all comes back to ourselves whether we are able or not to do that, because as you said, the opportunities are actually everywhere but are we able to have the qualifications as expected.
It is not wrong when we expect additional income from other jobs outside of the work we already have and of course generate more income every month but the question is whether we are able to do that or not.
Because in the end there are some conditions that sometimes the desire to change the economy, especially to get more income, is always hampered by several conditions and the main problem is our ability to support it. So in this case it is important to find our identity and qualifications first because in the end this is something that we have to upgrade so that we don't get lost with the wrong choice considering that it could be that our intention to look for additional income actually backfires on us because we are not able to do it.