IIRC, the main reason they didn't completely remove java when they made bedrock is because of its modding capabilities.
Another thing is that some people find the vanilla game to be a little boring and repetitive, mods completely remove this because of how many possibilities their are for mods to use and make
actually the way i did it was simple: 1 ) run your game and set it to be visible in game activity 2 ) once it says your playing the app of choice, open time and date settings 3 ) set the date to any date (i did mine 99 years in the future) 4 ) set the date back to the actual date, and check how long it says you have been playing the game for!