1, hometown, we should investigate the market to see if it is suitable for opening an optical shop. You can go to the local optical shop to investigate, understand the situation, make sure there are no problems, and then start these studies.
You must choose a more formal training course. If you can really learn knowledge, choose carefully to prevent being cheated.
3. Open your own shop or join. Think clearly here. Driving by yourself is cheaper and may be much more difficult; Franchise stores spend a lot of money, but a good platform helps a lot.