[Question] why does debit increase a T account for assets?

[new to accounting93]

Debit and credit?

In general if we pay someone we say the money has been debited from our account and vice versa for credit. I couldn't understand how debit is money coming in and credit money going out?

[Neville Bailey]

When you process a purchase of an asset, you debit assets and you credit the bank account. In other words, money is going out, not coming in.

Likewise, if you process an expense, you debit the expense account and you credit the bank account.