There are several levels of "computers"

• Basic, Speed (plus time, trip info, etc).
• Basic Plus Real Time Cadence / HR, etc.
• Mapping Capabilities (if you are GPS enabled, then logically should include Strava).
• Power, etc.

So if you're doing a basic no-frills computer, then I'd put Strava as optional.

On the other hand, if you're doing a full function cycle computer, I'd include provisions for Strava, Ride With GPS, Map My Ride, Garmin, etc.

No sense in demanding a rider start using some custom ride-share app.