No,its not too late to buy bitcoins as bitcoin's price rise has not ended now.It has just crossed its initial eight years.It is like saying that it is too late to use internet.Bitcoin price is predicted to reach more price in future.So,we could not say that it is too late.If you wish to buy bitcoin at a low price,then you could wait until november when segwit 2x would be activated.There would be huge FUD spread around the market and also panic selling at that time.So,there would be a price drop and you could buy bitcoins at that time.