Framer2b:
Your profile tells us nothing about where you are. If it is a major city, go to an outlying suburb -- beyond your home area -- to find intern work.
Another alternative is to make an up-front deal with a shop owner who is looking to retire in a specified number of years (there are many of them). In terms of function, you would start out as any new employee would; but after you learn the trade, you work your way up to become shop manager, and then after X years, you take over everything and begin paying the owner for the business when he departs. The buyout could stretch over several years past his departure. If you go that way, I urge you to have a lawyer prepare a legal and binding contract to cover all foreseeable contingencies.
Another possibility would be to find a shop owner who is interested in licensing, such as me. It works something like a short-term franchise -- you pay something for the training, business planning, buildout, shop setup, and startup help for your store, and the use of the name. But unlike a franchise, there is an agreed price for a specific contract period, for assistance and use of the name. When the time's up and it's paid, you could have the option to renew or move on; you would have no further obligation to the licensor.
In any case where there is an agreement, have a lawyer prepare a "real" contract. Sure, it would cost a few hundred dollars, but it would make all points of agreement clear, and avoid the possibility of he-said-she-said disagreements later, if things change.
If I were starting out today, I would seek out take-over or licensing opportunities. If a fair deal can be drawn up, then it would be much less risky and more profitable than starting from scratch -- which is what I did in 1988.
Some years ago I was fascinated by small business statistics. I don't know if these numbers are still valid, but I'll bet they are close: 80% of small business start-ups fail in the first three years; and of the remaining 20% of start-ups, another 50% fail within three more years. In other words, the chance of surviving 3 years is 20 out of 100. The chance of surviving 6 years is 10 out of 100.
By the way, the best way to beat the odds is to make a thorough and complete business plan. Call the US Small Business Administration for details.