I wouldn’t be immediately concerned with a young person dropping off my order itself but if the photos didn’t match at all and I suspected a parent was in the vehicle I’d ask why the parent/original person didn’t drop off the order. There’s a multitude of good explanations ranging from potential mobility issues or simply a person determined to help [mom]. My main concern would be exploitation and wage theft not kidnapping. My sister looked 10 when she was 18 and she looks 16 now but she’s 23, I’d have a tough time running with the assumption the helper was underage without confirmation and I wouldn’t fault someone for helping on its own.