Take your Social Security at 62. That’s the buzzy advice blowing up on TikTok and YouTube. Droves of “finfluencers,” as these social media personalities doling out financial tips are called, have been posting videos and memes to justify starting Social Security retirement benefits at age 62 — the earliest age allowed — and then investing the money each month in stocks. That argument is in stark contrast to what most financial advisers and retirement experts have been urging people to do for years, which ...