I met someone about 2 months ago, I was a few hours away from home on a busy train and we just started up a conversation with eachother. We really got on and after no time at all i felt like I'd known him for much longer than about half an hour. We realised we only live about 15 minutes from eachother and so exchanged numbers and planned to maybe meet up at some point. The day after we text for a bit and discussed that i have 3 kids and soon realised he's 21 and I'm 30. I'd assumed he was older, maybe 25 at the youngest but we got on well so we kept talking to see where this lead us. A few weeks later he asks me on a date and I say yes, i had a really good time and we end up going on two more, plus a few more casual meet ups during the day. It's going really well but I can't help but feel so old compared to him, he's closer in age to my daughter than to me. Sometimes it feels obvious to me that's he's so much younger and more immature, other times i forget