1. Some companies will not look at your resume or do business with you unless you have a LinkedIn account, especially in the age of AI. Fine by me.
2. If you go to start a business, you will find most of these social media companies require you to have a personal account in order to make a business/marketing account. This is very annoying.
3. Damn I miss Facebook Marketplace. But it's not worth having FB. You can usually have a friend do marketplace stuff for you.