Turned up toes! Does anyone have experience of having toes that turn up at the end? I can find very little…

Turned up toes! Does anyone have experience of having toes that turn up at the end? I can find very little about it online. I don't know what causes it - I think I had it as a kid but it has become more pronounced as I've got older. I always wondered if wearing thongs/flip flops as a kid did something to the muscles as they were developing, but plenty of people wore this type of footwear without this issue. Can anything be done? I have to be very careful to find shoes that h