Investing in Bitcoin is one of the best decisions you can make in managing your finances for the future. As mentioned in the topic, if you sell it now, you'll make a profit, meaning your capital will increase if all your Bitcoin is converted into fiat currency. It seems like you have been planning this business for a long time, I don't know how much capital you need to start it, but instead of taking a loan at the Bank which can burden you every month + interest, you should sell all your Bitcoins as initial capital to start the Business.
Now the best decision is in your hands, to start a business, don't forget to involve your closest family, maybe they have the best solution.
Surely you make a solid point, investing in bitcoin will be a very profitable investment and superb decision that can help in breaking the bounds of financial difficulties and brings financial stability just to show how beneficial bitcoin could be.
And you also mentioned when one is about building up a business or starting a business he or she should try to take along his or her family ties, seriously it is a very positive idea but at times it can be very dangerous. The world is full of betrayals and back stabbers, some family might not be in good terms with each other so requesting a helping hand could only bring disasters.
So before we should make enquirers from our loved ones let make sure we know there capabilities and possibilities towards our lives.