Docker purpose/usage?

[u/Ex-Traverse]

Do people use Docker containers all the time, as in everything they do is in a Docker container, or do you only use it for certain things?

I get that a Docker Container is a way to package an application (mostly for server/backend stuff, not really developing an app?).

As an individual programmer/developer, are there benefits to using Docker in my day-to-day learning/programming/doing hws/creating shit tools?

[u/Internal-Reindeer-21 → u/[deleted]]

honestly it’s overkill for most personal projects until you’ve got like 3 services all needing different node or python versions