@Dungeonsandwagons
On my word the haters!!!!
Ignore them all.
We've been backpacking in various forms my kids whole lives.
Aged 13 and 15 they were put up in a 5 star hotel for 3 nights when flights were cancelled on a school trip. They had a blast but quickly said how they love our trips staying in small local places, getting a feel for the culture.
DD1 was telling me this trip, how it's much better for locals to be traveling how we do - spending money locally. Not something id told her - her observation linked with geography at school. (Sweeping generalisation I know, but it's true that mostly there were no 'middle men').
DD2 relayed stuff I'd forgotten from a trip when she was 5.
Carrying rucksacks - we just have the right size for them.
When they were smaller I carried everything, they had a day sack.
They are great at packing light: 3 shorts, 4 t shirts, many knickers.
Trains/buses - they are part of the plan, help get tickets etc. Play cards while waiting etc.
DD1 decided to learn Spanish on Duolingo before going to central America this summer.
Far flung has been amazing but equally Scottish Highlands, Yorkshire, camping in France, Venice, Croatia, Slovenia....
Those saying leave exotic places until DD is an adult. What about OP too! Sounds like she loves travel, and her daughter sounds like a fab companion.
Money often goes further farther afield. 2.5 weeks in Sri Lanka cost about £1000 more than 2 weeks in Slovenia for 4 of us.
Slovenia - lots of self catering
Sri Lanka - eating out every day
Accomodation/transport similar in both
Activities - more in Sri Lanka, hikes and exploring on foot in Slovenia