The charging of my phone is done when the battery is low, and itt unplugged as soon it attains its fullness. I don't see the reason why I would continue charging it while already it has indicated it has reached its full charged level. Personally, I wouldn't want my phone battery to get damaged by uncontrolled charging of it. I have learnt that the contnous charging of phone battery is not healthy for its lifespan. That this can have serious effects on how long it could last over time. And that phone battery is recommeded to be charged when its below a certain level of drainness, which 40-20%. Plus, it shouldn't be charged until it attain 100% for it be unplugged from power supply.
I was also made to understand that if these recommendation is strictly adhered to that phone battery would last longer for the user. But if the opposite is the case, the longevity of the phone battery would be compromised.
However, I don't really blame people who defile these recommendations, because most countries don't usually have reliable power supply. For that reason, the only way they can have their phone batteries fully charged is by ensuring constant charging of them.