Personal trainers are people that need to be fit and in shape because if they aren't it will be difficult to help other get into shape. You need to be fairly social to be a personal trainer because you will always be interacting with other people.
Personal trainers probably don't make the most money. They should make a fair amount of money but not too much. They most likely won't make over average if anything they might even get paid under average.
Personal trainers won't have a certain amount of hours that they work a week. The hours change depending on who or how many people they are working with. They could be working with tons of people and have almost no breaks, or the opposite.
For most people a personal trainer won't be the job at the top of their list but others might think that it would be the coolest job ever amd would be so happy to have that as their job.
A personal trainer could be helping all sorts of people with all sorts of things. You could help people lose weight, get in shape, train for some sports game. There are many different things that you could be helping people with.
There lots of different reasons that people would say that this is a great jobs too. One of them being how much you get to socialize with other people. Another one being how often you get the opportunity to work out.