If universe is older than big bang, why don't we see anything older than that? I mean, there isnt such a drop in visibility of galaxy/bright object that is 5 bi

If universe is older than big bang, why don't we see anything older than that? I mean, there isnt such a drop in visibility of galaxy/bright object that is 5 billion vs 10 bilion years old. So, where are all 30 or more billion year old objects? Maybe there wasn't ultimate singularity in the beginning, but universe is definitely not the same no matter how far you look in the past.