Many colleges or adult education centers offer courses that teach about different wines and foods. They will have experts and vintners give seminars on wine tastings that will be very beneficial. You can also look for the best wine tasting course via https://www.sommwine.com/wine-courses/
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If no such courses exist, a person may want to request one from a local educational facility or maybe even offer to help plan a community education event featuring wine.
Sometimes, senior centers or clubs will be happy to host such an event and are happy to have a volunteer help plan the activity. This may seem like a lot of work but it is sure to prove educational and help introduce a person to the wine industry.
A good place to start learning and understanding more about wines is to visit several wineries. Sometimes, these elite places may seem hard to approach, but these are good places to improve your knowledge and experience.
Wineries often allow a person to sample some of their bottles of wine from different vintages. Wineries are eager to share information that helps a person decide what they like and desire in a variety of wines.
It is good that a person tries to visit wineries in several locations or different continents to have a real knowledge base. There are often tours to different countries and locales that specifically tour wineries of that region.