According to my 25 year old, and still living at home brother, they do.
My sister, who is 29 and lives out of home, agrees about the freezer part.
Had a nice family lunch out for step dads birthday, slightly marred by a conversation turning to my brother thinking about moving out. It ended up being turned onto me. Im a single parent ( divorced) i work part time. and rent.
According to him, the reason i am ' always skint' is because i am bad a budgeting and live an extravagant lifesyle.
The proof of this is the freezer being fully stocked. ( with left overs) The fact that the freezer is just 3 draws as part of a fridge freezer and hardly the tardis is a moot point apparently.
Also, my £30 spend at H&M this month, as they offered me 15% off and i took advantage and picked up some spring things for DD who has outgrown everything ( compensating by eating for £15 that week, and thank fuck for the stocked freezer) is also proof that i am ' always buying things'
While i was accused of this, i was sat wearing a pair of jeans that are two years old ( and currently broken and i cant afford a new pair) a top that was 18 months old and was brought in a sale for £10 and a pair of boots also two years old. My coat is 3 years old.
Ended up in tears when i got home.