The Convenience of the Grid
A studio apartment is fully integrated into urban infrastructure. Flip a switch, you have light; turn a tap, you have hot, potable water; flush, and the waste vanishes into the municipal sewer system.
Internet access is typically high-speed fiber or broadband, installed easily by a local provider. The logistical burden on the occupant is near zero, save for paying the monthly utility bills.
The Labor of Off-Grid Living
Tiny houses often necessitate complex utility management. Even if parked in an RV park with "full hookups," you are dealing with hoses, freezing pipes in the winter, and limited electrical amperage (often 30 or 50 amps).
If truly off-grid, the labor increases exponentially. You must monitor solar battery banks, ration water usage from a holding tank, and physically process your own waste via composting or incinerating toilets.