Oh ffs you won't let it go will you!?!
ESPECIALLY right now it's entirely possible they WFH!
or work shifts, or yes perhaps they have an inheritance or a lottery win behind them....
Even IF they're on benefits it's absolutely NONE of your business!
I'm disabled and on benefits long term. I've HAD ignorant people pass comment right to my face that they believe I'm claiming fraudulently SIMPLY because my health issues aren't immediately visible!
I have a degenerative spinal condition and so far LUCKILY I'm not yet needing to use mobility aids and IN FACT have been cautioned against the temptation to do so when I'm having a bad day as maintaining the muscle tone and mobility I have at the moment is important.
I also have severe ocd which massively impacts my life and IS classed as a disability too, it's currently causing me to be housebound over 3 years as it makes me agoraphobic too. Even when I'm not housebound I am still agoraphobic (because it's far more complex than "just" keeping you "shut in") as I can only cope with travelling to certain places in certain ways on certain days at certain times.
I also have brittle asthma which can make me very ill at times.
NONE of which the smug, arrogant, ill informed idiots who accused me of fraud knew the FIRST thing about because...shocker...my medical history, financial and personal history were NONE OF THEIR DAMN BUSINESS!