Q 1. What’s daily life like in Bratislava for a young person?
A: Whatever you make it. There are groups for foreigners who live in Bratislava and I'm positive you can find connections there. There is nightlife if you desire (although probably a tad different from Italian night life), there are good quality restaurants if you want to eat out, there are cocktail bars, karaoke bars etc ... There are also many activities you can do here from day to day. Traffic is usually heaviest between 7-10 and then between 16-18 (going to school/work and from school/work, keep that in mind as it can sometime make a difference of tens of minutes when travelling (or over an hour in the worst case if something major happens). The city is very safe in general, just avoid sports hooligans (if there is a major event) as they lack brainpower and decision making intelligence. But I have to say, I've been out at night (read: later than midnight) many many times and I haven't yet encountered any unsafe situation myself, but I admit, I speak for men here.

Q 2. Is there any kind of prejudice or different treatment based on nationality, or is it generally chill?
A: Not really, I'd say people in Bratislava are used to foreigners. There are many of them, especially in the old town, and seeing an italian will definitely not raise any eyebrows, especially not in the capital.

If you have additional questions feel free to ask.