The "trig in real life" is a common question, but its deeply flawed. You can use trig in real life - I used it last time I bought a monitor because I wanted to compare the areas of models with different aspect ratios and I only had the diagonal size and aspect rations.

There are much deeper flaws in this question:

1. That you only learn what you are guaranteed to use in everyday life. Education should leave you with choices. You learn trigonometry so you can later choose to do things that require it.

2. That everything you learn in school has to be something that is likely to be useful. When did you last use history or literature or art?