You name it, I've listened to it. I tend to have determined a few ELEMENTS of the music that I like, much much moreso than the specific genre. I've found many people who are very passionate about music are this way. I love music with energy and fire. I love music that takes you on a wild ride where you don't know where you're going next.
By the time a young gymnast turns 5 years old, he or she can master more complex gymnastics skills if regular training and classes have been going on for a few years. Physical maturity, practice and good teaching will allow older children to master impressive gymnastics moves on all the equipment.
In the latter half of the 20th century, a series of controversies arose with regard to gymnast ages, some of them leading to sanctions by FIG, and paving the way for the age requirements to be raised from 14 to 15 in 1981, and then to 16 in 1997.