There are a lot of reasons why someone would want to download apks directly from google play. There are a lot of websites out there which provide apks for a direct download but half of them are full of viruses like adwares. Here is a list of 3 websites where you can download the apks directly.
This is the website that i personally use to download apks directly. Just copy the link from google play / the application name and paste it in the search bar. Click Generate Download Link and start downloading it.
Follow the same process as APKLEECHE.
#3 APK PURE