1. I'm far older than 30 and people shit talking to me are not a problem so their age is irrelevant.
2. Following that logic, then we should not work as it is bad for our health? After all we have options.
3. If you are interested in brain chemistry, you should now that happiness feeling comes from the same chemical process everytime, whatever if what started is a drink or a cat video.
Swimming kill bran cells, playing football kill braincells, lack of sleep kill braincells, stress kill cells, etc etc.. Many things kill braincells, but our body is made in a way that we can affort to lose some of them. So again, there is nothing wrong with alcohol is you use it with moderation