These days, if you see a roller coaster train stopped on the lift hill, it's 10x more likely to be caused by the ride ops stopping the ride to confiscate a phone than for a breakdown [0].

A whole lotta wannabe influencers want to record a video of themselves on a ride.

[0] Also, most "breakdowns" on roller coasters are from the ride computer thinking something isn't quite right and stopping the ride as a precautionary measure. It's actually pretty uncommon for there to be an actual mechanical failure.