It goes without saying that acting is one of those professions where you can never stop learning. The actors of Bridgerton, for example, had to take classes to learn many skills of the upper class from the Regency era. This included lessons in etiquette, dancing, pistol training, voice lessons, horse riding, and more.
Speaking of which, Regé-Jean Page who plays Simon, the Duke of Hastings had only six weeks to learn how to ride a horse. He also had to take boxing lessons as that was one of the skills his character had on the show. Well, what can we say? Everyone did an absolutely splendid job!