Which cryptocurrencies are better suited to users with limited bandwidth? I'd like to try my hand at cryptocurrencies, but have limited bandwidth. Which cryptocurrencies are best suited to users such as me? Why?

Due to the high bandwidth costs, I expect cryptocurrencies to not be profitable for me, so my main priority here is to try my hand at a few of them without using up too much bandwidth. I'm not sure if this makes much difference to bandwith use, but I'd like to try my hand at mining and trading.
Apart from a few cryptocurrencies, including Bitcoin, most of them have very low exchange rates. So although you will find many such virtual currencies, it won't be profitable either way. And mining does not require bandwidth as such, it's only the blockchain synchronization which would be slower with a lower bandwidth. Mining is achieved by your machine and not the bandwidth.

If it's only the knowledge you wish to gain, then you can use the bitcoin testnet to mine test bitcoins, however trading testnet coins is not an option.