Yeah it's too bad that even today young people are swindled into getting botched hair transplants by money-grabbing unscrupulous surgeons. It's terrible and those people should be prosecuted.
As for myself, I unfortunately got a 3,200 FUE HT in Turkey back in 2017 and the density was not sufficient, so I got SMP by a reputable practitioner in Paris (Sopigment) to conceal the FUE scars and fill in the crown.
While it's not perfect (the SMP hid about 75% of the original FUE scars), at least now I can go to a restaurant, a club or a bar without feeling too much self-conscious about my hair.
Before the SMP, I would wear a hat 24/7, except when I went to sleep or alone in my room lol.
So while SMP is a good solution, it doesn't come without its limitations (SMP will never hide 100% of your HT scars).