you can't say that any type of riding is harder than another. flat will look hard to people that don't practice it, and everything else will look crazy too flatlanders that just ride flat. Street riding is probably the most frustrating and tiring. sometimes it takes about 20-30 tries/falls to do a line.
Vert looks scary as hell. i rode a 12ft halfpipe once, and i was shaking when i was gonna drop in. If i did drop in, i would've killed myself. Imagine having your back tir hanging up on the coping.
i ride dont ride vert but im starting to, but flatland is harder than most im stuck on this thing me and my friends call the wrap around ehre u spin around to the front and push ur tire to go forward i can go far but i cant get back to the frame and land it only on a good day i land it. it is occasionally i land it
Yes, pure skill wise, flatland is much more difficult. At the pro level, flatland is completely incredible.
I would have to say this is consistent with how dangerous it is though. Since you are less likely to seriously hurt yourself like you do on dirt/vert/street you have more chances to try stuff until you get it right.
30 tries to get a line on street? Try 3,000 tries to hit a trick for the FIRST time on flatland. Some tricks take years to learn. I don't consider it an insult to the other forms of riding. The pros within each discipline are completely insane and phenomenal. But, for pure difficulty/skill involved in the tricks flatland has the edge.
If people could ride street and never get hurt, the tricks would be way more crazy than they are now... but people are killing themselves (litterally) when riding street/park and one broken bone will put a rider out of commission for months... or more.