My sister is a few years younger than me (both late 30s), and has no children (by choice). She earns really good money and has decided to book a spontaneous last minute solo holiday this weekend. I'm a mum of 2 and I couldn't contemplate doing that. I mean we have lovely family holidays obviously but I just got a pang of envy when she told me she'd booked a solo trip! Am I strange for feeling this? Anyone else get what I mean?