Nowadays, it is not enough to be proficient in a particular subject, multiple skills are required to progress in your career. And changing careers does not mean neglecting your previous education, rather it helps you progress in your career by acquiring new skills. Sometimes our career goals can change without us knowing it, so learning something new will be a big advantage when entering a new job later. Therefore, having a mindset of learning something new is very important. However, before changing careers, it is necessary to understand your qualifications and interests, what kind of needs people have in the new field and whether you can do it well. Having multiple skills in yourself is an advantage in all fields. Those who have multiple skills are ahead in the workplace.
Am hundred percent with you on this because day by day the world is changing, and depending on just one skill can limit your opportunities in some kind of situations so having additional skills might give you more options and makes it easier to adapt when things don’t go as planned not necessary a skill but at least another source of income. To me I just have this believe that having another source of income or learning another skill should not make us lose focus on becoming good at what we studied or what we do best, I just have this belief that what every world best your you is good to go but at a time back up plan is very necessary.
Yes it is wrong to have only one source of income, if you have only one source of income, you are very close to poverty, because when that source of income closes, you will be broke automatically.
When you are making money from a particular source, try as much as possible to expand to other source, don’t depend on one source of income get 2 to 3 source of income so that when one closes, you won’t be broke.
There was a time in my country when Facebook was paying content creators huge amount of money, some of them used the money to find or make another source of income for themselves, and some of them did not, right now those that didn’t are suffering and regretting because Facebook has reduced the amount they pay content creators in my country.