They can be pricey, but their looks alone are often worth the price tag.
Then there’s the matter of their pigmentation.
Nail polishes aren’t meant to last forever, but traditional paints are manufactured to last.

If it’s possible for you to find non-toxic varieties, acrylic paints should be fine to wear.
So pay special attention to the paints you’re buying if you’re using them for this purpose.
Moreover, since they’re not made for nail use, they may not apply evenly.

With some work, they typically smooth out.
Have fun with it (and be safe)!