Vagina.
Remember when skateboarding was punk rock, society and the public hated us and we hated them. All of these young kids that grew up, with the x games and skateboarding being accepted, have no idea of how much hate we had to go through before skateboarding became main stream. There were less than 10 skaters in my high school of over 3000 kids. I used to get called "skater fag" and have rocks thrown at me if I just rode my board out front of the school.
I personally don't argue with security, it's just not worth my time at my age. But my paycheck also doesn't rely on the footage I get riding my skateboard and my sponsors didn't pay for me to travel just to get get footage. I'm sure I would take things a lot more serious if it did.
With the general public and As far as the mom goes, I have kids and if someone trying something like this at a playground, I would at the very least give them a few more tries if that's what they were asking, Even if they were on bikes or rollerblades. I would want my kids to witness a "stunt" like that. Respect goes both ways, she should respect the skaters and give them the one or two more tries he asked for. Is it really going to destroy your day to make you kids wait five minutes.
If this crew really ruined things for the locals then that sucks. I respect their disappointment. I'm sure that was not the GX1000 crews intention, they were being shown around by locals were they not? But it's crazy to think this video was disrespectful to Japanese culture as a whole, they were trying to ride a fucking skateboard.