When young people get their first apartment, many of them do not have enough furniture. Their budgets are often not enough for them to purchase new pieces, so they often scrounge used furniture to fill up their space. Some of them will simply use it until they can buy what they really want, but others will let their creative side out and refinish what they have. This is often where hobbyists start, and for some it will become a lifelong passion.
There are many different ways to refinish furniture pieces, and retail craft stores have stocked their shelves to help hobbyists explore them. Some items are simply decorative, and others are books and videos on how to take pieces apart and put them back together correctly. It all depends on the skills and goals of those who refinish their used furniture pieces, and many find fulfillment at different levels with a variety of techniques.