Ask HN: What makes you start a free trial?

Assuming the product is relevant to your interests, what are drivers that make you start (or not start) a free trial when offered one?

Things that come to mind:

- having to leave personal data (and the quantity of data)

- likeliness of getting contacted by sales or marketing teams

- promise of trial: seeing the entire product vs only a part, flexible 'do your thing' vs strictly walled garden, etc.

- (no) credit card required

- start immediately vs wait for email to confirm your interest

- time to get started: see a ready-made instance of the product vs set it all up yourself

- others?

Curious to hear your thoughts!