The average charge in the states for someone who works as a joiner and finish carpenter is about $500 per day. There's a whole lot of cost in that.
Someone buys the materials, does the design, installs, etc, deals with non-paying customers and legal disputes.
Here, as there, the folks who are successful are often fairly shameless and very proud of their work and quite often, they think they are better at their work than others and hold themselves and their work in pretty high regard.
The guys who get into business and think they're going to be fair and just get by with a decent wage don't last long.
On the same note, you often get people here in the states (and there, i'm sure) who have a six figure pay and benefits package and think that it's OK for them to, but a trim carpenter who charges $60 an hour is out of line and totally greedy.
I didn't watch the video above, but we sure do have a problem in woodworking where the average person loves it as a hobby and pretends in their mind that they'd do it much better than the other successful businesses.
If they're logging in from an apple product (which generally costs twice or three times that of a similar and probably longer lasting PC product), it's worth a chuckle.
All that said, the two biggest long term success measures that I've seen for folks doing work where the barriers to entry are fairly low are:
* being willing to charge enough that they can weather a crappy customer or three (or a lawsuit)
* understanding how important it is to curate a customer list, do work for them and "be on all the time" to continue to grow that list and your reputation
(and ignore the people who yell from the sidelines that someone could do it for $25 an hour and eat a few hours of time and some bad materials).