Well - seeing that he probably asked for money, yes, a quick way to give him some cash (or "gold", if you want to call it that way) is via the /givecash command. Just type in the chat: "/givecash <name> <amount>"
Also - about your second question, yes, mining is technically legal for everyone. The only issue is that with an IC ID you will get a negative bonus on mining, so it'll be rather slow. It's best to leave mining for ships that have proper miner ID (or some various corporations, such as Kruger, IMG, BMM, etc...)
Then again, if you want to get a hold on a commodity that is usually mined (i.e. Niobium Ore, Gold Ore, Helium-3, etc...) - you could find people who are miners and get them to mine for you, of course... for a price.