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I know many muslims never get a birthday party or a birthday cake, .............
No..nooo., that is not completely correct statement unless you extend it a bit with further statements.,
Similar to Muslim folks millions of non-Muslim folks also never get a birthday party or a birthday cake., And similar to non-Muslim folks .,millions of middle class or upper middle class Muslim families also do birthday parties for kids and grownups..
Now there are 10 or 15% fools in Islam who follow idiots that preach Islam from that rubbish hadith may not allow his/her family/friends to participate or do birth day parties.. I think here agree with that Zakir Joker of India
https://www.youtube.com/watch?v=QxKAz3-Us_4and here are these idiots
https://www.youtube.com/watch?v=kVvQei-yDyk https://www.youtube.com/watch?v=4Whf03It9YIalso you can add some bearded baboons from that sand land wahabi Islam not allowing birth day parties..