Was I really very innocent to think like that?

I remember in 2016, me, my parents, mom's friend and her family went to Goa in trip. There in Goa I saw some buildings on which it was written Casino. I was a 15-16 yr old boy in 11th grade and honestly I didn't know whats casino. I thought it was some cool restaurant and asked my parents to buy me a burger from that casino. My mom scolded me because her friend and her family was there too and told me its a bad place and they will take me to some other restaurant. I said ok. Later on Internet I searched about casino and was shocked seeing whats casino.