There are a few things to consider when deciding whether or not to use FileVault encryption on your Mac. The first is whether you have sensitive data that you need to protect. If you do, then encryption is a good option. The second thing to consider is whether you're comfortable with the added security measure of having to enter a password every time you boot up your computer or access certain files. If you're not comfortable with that, then encryption may not be right for you.
Here are a few steps to take if you decide to encrypt your Mac:
1. Open System Preferences and click on Security & Privacy.
2. Click the FileVault tab and then click the Turn On FileVault button.
3. Follow the prompts to choose how you want to unlock your disk and reset your password if necessary.
4. restart your computer when prompted