So I installed Ubuntu Desktop on an 8GB USB Stick. I tested it in the boot manager and everything seems to be running smoothly. For the sake of learning linux and practicing commands (I am an amateur with a VERY mild background in programming, and no linux experience) etc, should I just use Ubuntu on the USB drive until I feel more comfortable to install it onto a partitioned drive? Or should I just install it right away? Are the only restrictions to using it on a USB limited to the amount of space the USB has?
I guess it boils down to a preference thing but I eventually plan on switching over to linux completely on my laptop. Currently, I have a MacBook Air and 20GB of free space left on my HDD. What do you think? One reason I am hesitant is because I read on that 25GB of space is recommended on a partitioned drive, I barely have 20. Will this be an issue/something to worry about?