How can teens start their own businesses if they find it extremely difficult to get financed?

Good Question Lina. There are two ways. 1st way is this business is your passion and you covered all business strategy, plan and financial plan as well, this way I guarantee financial institutions can finance up to 70-80% and be strategic partnership until paying back. 2nd option, you have the idea but still not strategically nor feasibility study covered. In this case it's better to work , gain experience and work on your dream project at the same time. As long you have a goal, make it a mission not a dream, believe in your project and why you chose it. Sooner or later, the 1st way or the 2nd way , plan A or plan B.. You will make it.

I must say this is one of the best question i have come across. It is amazing to listen to ideas from some young teens regarding what they want to do as a business but the issue is, lack in finance and due to lack of experience in market it is hard for them to inspire most of the investors. Therefore,

In my opinion start a business with a service, knock doors and offer what the business can offer. Market the business on social media where you don't have to pay. Depending on the business, plan a structure and set your market approach accordingly. 

Starting a newe business involves a lot of learning. You have to learn how different parts of the business functions and regardless you get your business financed or not. However, and if its really difficult to get the finance required, my advise is to invest in yourself and learn how to do things yourself. It won't be long until you reach a point where your business is operative and can get revenues to re-invest in your business.

There are various options couple of most preferable is to start with partnership or to secure bank loan to finance

you need a business plan implementing all of your business Ideas and value

you need to show what it will be successful and why it is a good idea to invest money in it

then you need to talk to Venture Capitalist to finance your idea 

and you need to convince them of the prospective revenues

1- PLAN YOUR BUSINESS IDEA

2-CHOOSE BUSINESS STRUCTURE & REGISTER

Take Action: Every business day do whatever it takes to make an honest connection with just one current or potential client/user/customer. Digital marketing is another animal altogether, but there’s no better form of marketing than what’s known as referral marketing