I don't know much about anyone here personally.
Well except Squeaky NIT Pedophile who pukes out his pathetic sad personal details every five minutes.
When you add up a mortgage, health care, childcare, education, insurance, taxes, auto, home maintenance, etc.; and proactive investments and safeguards so you do not end up like Squeaky eating out of a dumpster, then $13K a month is not out of the question. Maybe he has a higher cost lifestyle.
Maybe he lives in a high wage income and higher cost of living area.
If he is making that income, that is good for him.