How come you can't stream or use the auto feeder when immobile? I feel like your carer (or lover) should probably be able to either help you to the auto feeder/streaming setup, or bring the auto feeder/streaming equipment to you.
As it is, it essentially means that enormous is the maximum size you can stream at, as that's the highest weight class that can still use a mobility scooter in order to use the streaming setup.
Also, I think housebound blobdom could use a slight depth increase. Like, have Dizzy's contact you and have you sign a "contract" or whatever in such a way that you earn the points towards being able to buy the Dizzy's products just like you can from the facility, except they're ordered online and delivered same day rather than buying them in an in-person gift shop. And if the player character is a blob in their own home, since you retain far more autonomy as a blob in your home than you do at the facility, you could even potentially let the player earn points off of their own gains, corporate dystopia style, where the company "rewards" you with more fattening products the more you ruin yourself.