There are tons of ways to make money, but I guess he is not looking for a long term job now and only wants a short term paying job. He should learn some website maintenance and content loading, then ask around to find simple jobs like that. It pays alright and is not too tough to interfere with his studies.
Airtasker can be userful, he may find some jobs he can do that are not data entry but will take little time and pay well. https://www.airtasker.com/
If you are good at Article writing then you can easily make $10 per day. Normally an 500 words article sells for $5. You can try on Freelancing sites and Fiverr.
that is a good initiative for a college student to avoid being idle and over dependent on the guardian. he can try freelancing which he has a guarantee to earn even more than the 10 dollars. All the best though
you can make a mony to sell service on fiverr like get seo on page or off page it's easy paste url site to https://juxseo.zoomshift.com/ and creat report or binkline ...Ext. and There are other site like https://acapela-box.com/AcaBox/index.php creat taxe and traduit on son very nice idea and fast to earn .
$10 per day!! It's so much easy task for a college student. If he wanted to do data entry task then he can do it easily. Only he have to create account in freelancing sites like fiverr, upwork, freelancer.com etc and have to try for that. I believe it'll easy for him to earn these amount. He also can contact in different forums where clients are available.