That feels like it would be a pretty significant blunder for stripe. Paypal is everything that stripe isn't. Legacy, confusing, slow, expensive and hidebound.
I would wager that Stripe has already put together a consumer-cash platform, and is weighing whether to deploy it as "Stripe Cash" or "Paypal 2.0". The former strategy would require a slow rollout that would compete with Paypal, Apple Cash, whatever Google and Samsung’s offerings are called… The latter branding would make them the dominant player overnight.