Привет
1) Хобби означает собирать марки. - No, it doesn’t. A hobby is something you like doing very much; you are ready to spend your free time on it. It’s not only collecting stamps. For example, collecting badges, dolls, pictures, cups, toys, toy soldiers, books, pencils, travelling and gardening and sports is a hobby.
2) Коллекционирование марок популярно только среди пожилых людей. - No, it popular not only with old people. This hobby is popular with people of all ages.
3) Коллекционирование марок ничему тебя не может научить. - It’sfalse. You begin to learn different facts about history, famous people and different countries when you start to collect stamps.
4) Люди обычно начинают собирать марки по специальным темам. - It’s wrong. At first people collect every kind of stamps.
5) Коллекционеры никогда не специализируются на одной теме - It’swrong. Sometimes collectors specialize in stamps on one subject only.
6) Тематические коллекции не популярны. - It’sfalse. Soon after you begin collecting something your collection becomes thematic. So thematic collections are popular.