1. My Chinese name becoming my family/last/surnameSimply handing over your passport/NRIC to an official (usually at the airport) is almost never a good idea, cos you just end up in a mild panic when they tell you "I'm sorry I can't find you on our database". Then you realised it's because they tried to search "Shimin" for family name instead of "Sze". Potentially even worse for people who only have Chinese names like "Tan Ah Long".
2. Trouble with filling up forms
This isn't much of a problem for me, since I do have a Christian/English name, but for those who don't, the institution is always screwing your name up. You'd be Mr Long, Tan A. Long, Tan Long etc. Some people with names like mine try to be 'clever' and get it written 'the way it is on your passport' and write "Jocelyne" under first/given name and "Sze Shimin" under family/last/surname, and I guess that could work out but it's just weird. And when I fill in my emergency next-of-kin details, I always fear someday, someone will ring up my dad and ask for "Kim", and he'll say "sorry wrong number".
3. Having your name wrangled when pronouncedIt's not exclusive to Chinese names, it's probably the same with every other name that isn't of English origin. But still, being announced to everyone as "Miss Jeng" (or something similar sounding) at my graduation wasn't very nice. Though to be fair, "Sze" is weird.
4. "What's your real name?"Kind of like "Where are you really from?" questions I guess, cos you know, "Jocelyne" is actually a fake name. Okay maybe that was a bit of a harsh comparison since not everyone has a Christian/English name from birth, and I can't really think of anyone who's asked that worded exactly like that. Had a few "What's your... Do you have other names?"
5. Not recognising friends' names on FacebookWhen you've got friends whom you knew by their Chinese names in school, then they went overseas and become "Amanda Tan" or "Benjamin Lee" (not trying to finger point anyone, but these were the most generic English/Chinese names I could think of)... And I'd be scrolling through my Facebook feed wondering who these people are...
It's probably way easier if we all just adopted the "English" way of naming, but then where's the cultural exchange and broadening of minds and all that stuff right. It's only with exposure that one learns.