If you're not competing, do not wear rodeo attire.
So yes, English boots would be appropriate. If you dressed up like a cowboy it would be like wearing a football uniform to a football game that you're just watching.
Well yes, but fashion boots are never the best choice for riding. A pair of sturdy purpose made cowboy boots will work better and be more comfortable.
The English translation for rodeo is just "Rodeo"
Bronc riding, bare back bronc, western games (barrel racing), bull riding, calf roping, steer wrestling, team penning, trick riding etc.
At the rodeo
rodeo
Bareback bronc riding, saddle bronc riding, and bull riding
rodeo
Rodeo
stay on it the longest
Rhinestone Cowboy
these following are event that would be held at a pro rodeo Calf roping, steer wrestling, team roping, barrel racing, saddle bronc riding, bareback riding, bull riding, and sometimes steer tripping these event would be held at a novice rodeo or armature rodeo all the same up top and goat tying, pole bending, ribbon roping, breakaway calf touch.
Panhandle Slim boots are considered to be pretty good boots and are endorsed by several rodeo riders. The boots are available online and at places like Zappos.
Bull riding, however, this can be different for your area.