Sure,

What I saw was this. The voter file was completely inaccurate. It was very common to go to a residence where voters:

  a. had moved
  b. had died
  c. had multiple 12+ voters currently registered at one apartment address, none of whom live there.

From my perspective there are real issues with sending unsolicited mail in ballots to homes because the government does such a bad job managing the voter file. Often it is deliberately mismanaged because "purging" a file is a loaded political term. Who wants to be that guy who deletes voters?

Moreover, my role as a campaign staffer was to collect votes. Often, people would ask "what do I vote for?", and I would just point and tell them what to vote for. This is also common. It also feels unethical.

Based on this experience, I strongly support voting in person, with an ID.

Don't trust me. If you would like to see this for yourself, volunteer with a campaign (any party) and canvass an apartment building in a swing state.