for those who go for artficial eye lashes, what if in the process u want to remove it or when putting it and the person doing it mistakenly put his or her hand or the equipment into ur eye.
ha ha
na linja one eye be dat oh!!!!!

ask the same question about putting eye liner, no difference. you can injure your self doing that too but it rarely happens.
why wear high hill boot? you could fall and injure yourself for "no reason".
why wear make up that could make your skin have an adverse reaction to it?
why put on weave that could destroy your hair roots and make you bald.
the list is endless and unfortunately there is no real answer to your question. just do whats good for you and let others do what they think is good for them.
to each their own.