[thatswrong0]

You can have the exact same threat of violence or family pressure for voting booths. "Show me a cellphone picture of the ballot you voted with"

I think making a claim either way about voter intimidation is silly. The most important points are to increase voter turnout and to reduce large-scale fraud.

[bpodgursky]

That's just not true, many jurisdictions don't allow electronic devices, for exactly this reason: https://www.bustle.com/p/can-i-use-my-phone-while-voting-all...

[thatswrong0]

I'm sure it's illegal to pressure someone to vote a certain way as well. Do you really think someone is monitoring someone's voting booth to see if they're using their phone? Wouldn't that be in exact violation of the problem you're talking about?

How would this be enforced?

Very silly.