Both parents have single eyelids, but the children born are double eyelids. In fact, this possibility is not without. It doesn't mean that a child born to a single eyelid parent is a single eyelid. It is possible that the children born to parents with double eyelids are also single eyelids, so this kind of thing is not good, because if the parents are single eyelids, the children may have 20% double eyelids, so this is only a matter of probability. No one stipulates that parents with single eyelids must have children with single eyelids, and there is no need to worry about such things. Single eyelids are very common in the east, almost half of them are single eyelids, but I think some girls look good even with single eyelids.
However, some girls will especially mind that they have a single eyelid. I think girls with single eyelids can also look good, and now makeup technology is so developed that girls can look good as long as they make up. There is no need for plastic surgery for this kind of thing. Although the plastic surgery technology is so developed now, it is a minor operation to do double eyelids, but I think the parents who are endowed with body hair and skin are just like them, and there is no need to do plastic surgery. Even if double eyelid surgery is only doing micro-plastic surgery, no matter what plastic surgery is, it is risky, so we should be cautious about plastic surgery. If you must do plastic surgery, then go to a regular plastic surgery hospital, and never go to that private small place. I believe everyone has seen a lot of news on the Internet, because some people have it.