As with all other things, e.g. alcohol, there is a right way and a wrong way to do things.
If birthdays are an excuse for debauchery, then they become evil.
If they are an excuse for families to gather and get closer together, without big gift givings that burden some, where the get-together is for reacquainting all with the newly married, the new grandchildren, nephews and nieces, etc. - then they become a force for good. Thus, they should be mostly alcohol restricted, tobacco restricted so that all can enjoy a good time that doesn't descend into some hell.
When reading the Bible, for those who do, you will realize that in Genesis people got really old. How old? All you need to do to find out is read. This means they kept track of their ages; thus, some form of birthday reckoning was in effect from of old. There is nothing wrong scripturally with birthdays, it is the excess and wickedness some descend into that is wrong. Those who forbid this condemn themselves 'by going beyond what is written.'
PS: check out what heresy means? It means choice! The right to choose what is true worship was condemned by some churches. This is true apostasy. We must all study on our own to make sure what is truth and good worship. (
the definition of heresy)