Lumbar support isn’t standard on the T-Roc, but from April 2018 it became an inexpensive extra from SE spec upwards. Try looking for a car that has this because it will be much more comfortable than one without it.
Also, check that the alloy wheels are in good condition and don’t have any damage, because some models come with 19in wheels that could be susceptible to the odd kerb. The interior plastics are all hard and scratchy and might not stand up to family life as well as the interiors of other Volkswagen Group cars.
Some examples have been subjected to recalls.
The owner’s manual originally supplied with the car misses out on important pages about the passenger protection system, airbags and children trapsort safety. A supplement should be included in the manuals of T-Rocs produced between 1 November 2017 and 31 January 2018.
On affected vehicles, engine compartment covers were fitted that regardless of use (very sporty driving style or poor road condition) and operating period could come loose from their attachment.