Harry Styles does not do martial arts, but does practice a military-style fitness regime.
All styles of martial arts do.
There are many differences between external and internal marital arts. One difference is that external marital arts focuses on the physical abilities while internal martial arts focuses on the Chi energy of a person.
Martial arts kickboxing martial arts
"Martial arts" are not limited to Asian styles. Most European styles are practiced shod.BoxingFencing (Epee, saber, etc.)ArcheryWrestlingQuarterstaffSavateTai ChiKendoSingle stickBataCanne de CombatEskrimaKrav Maga and other military styles
Most likely Taekwondo or Karate, these martial arts have many families involved and most studios of these take both children and adults as students, compared to martial art styles like BJJ that may not.
Many arts are practiced in Taiwan, but the various styles of Kung Fu will be the most prevailant.
No ones knows.I think he first Learned Chang Quan.
Mixed martial arts is exactly that, a mixture of martial art styles and techniques. MMA practitioners use both Asian arts of all types, with particular focus on Brazilian JuJutsu and boxing.
Too many and too many variations of each.
It is impossible to know any martial art in anyamount of time. Besides you do not need to know several martial arts. If you find a martial arts that suits you and train, train and train, then in 3-4 years you should be pretty proficient at it. Everyone who studys martial arts are always learning. If anyone says they know a martial art, they are either lying or have a massive ego.
Ranma ½ isn't based on any one style of martial arts, but several of them, and many of them are parodied or are inaccurate. The school of martial arts that Ranma and his father, along with Akane and Soun Tendo practice, is known as the Anything-Goes School of Martial Arts, so while it incorporates numerous actual martial arts techniques, it also uses ridiculous "techniques" and fictionalized martial art styles.