i prefer to hobby share with others. my hobby was gone fitness center with co-worker. i was excercise with co-worker, we are compared each other. and we were work hard to excercise together. but my co-worker stopped excercise one day, so i stopped excercise too. sure of i can excercise alone but i was lack of persistence. it's my problem. but if share hobby together, can long term and enjoy together hobby .