Yes, i have travelled alone to Singapore when i was 23 years old. At that time, i just finished my study and decided to look for a job after vacation.
I decided to go there because the country was close to me that i could take about one hour flight and they were safe.
I lived in the hostal in Chinatown when i was in Singapore, the hygiene and quality people impressed me because i seldemed see rubblish in the Street and people were always reading when travelling in the train.
I enjoyed the time in Singapore and made some friends from Ghana in hostel, i still had my friend contact after years. Unless the high living expense in Singapore and less wind in city, everything was good for me.