When I was a backpacker in Thailand some 15 years ago I met a woman who was travelling solo with a very young baby, and I was in awe of her too. She had a DH but he was working abroad for an extended period and she figured, why should he get to do all the travelling?! We teamed up for a few days and I have a very vivid memory of us taking a boat tour together and the baby napping in the sling the whole time. One night at dinner, she left me with the baby so she could go to the bathroom. The baby started crying and wouldn't stop so I walked him around inside the restaurant to calm him down, but when she returned and I wasn't at the table, she panicked. I felt very bad about that!
I've had two refluxy babies and there's no way I'd have found backpacking with a baby "easy" like one PP suggested! Since becoming a mum I've thought of her a few times and my appreciation has deepened!