It doesn't matter if you use what you learn, the point is to learn HOW to learn, how to focus, how to complete a task, how to study, how to retain information. You are working your brain like a muscle, which will help you later in life no matter what you are doing.
As a twenty year math teacher, thank you.
Stats may be outsourced, but you need to interpret them. Or know which ones are altered/useless.
Algebra teaches how to follow procedures, interpret an answer, solve a problem. I don't know of too many jobs where you aren't asked to "solve problems", or have the ability to think.
Geometry exercises the part of the brain that has gone unused until high school. Critical thinking. Again, I don't know of too many jobs where you won't be asked to gather information and come to a conclusion based on information you know to be true. Or how to justify to your boss why you think he/she should spend $xxxx for a budget. They aren't going to just take your word for it.
I have this same conversation every year with my students. I end up giving a sports analogy. Think of your brain as a muscle. What happens to the athlete who doesn't work out, or attend practice? When they go to use their skill, it's diminished. Or not what it could be. Same with critical thinking. If you've never had to think, how are you going to get a job that requires decision making skills. Memorizing facts isn't enough.
Or an athlete lifting weights as part of his/her training. When you're on the field or court, you aren't required to literally carry weights or use a treadmill. But that practice in the weight room improves your skills for the big game. Same with math. That muscle is developed for when need it.
Math starts you out exercising that muscle.
Good luck on your tests!
PS. Feel free to PM me if you need help with your math. lol. Happy to help.