Always loved the sigpic. Sometimes it's the only thing I remember.
On meeting girls..
Once you reach a certain age range and are still single, that becomes an oddity to many parents. Those who are married have it better. Those married with kids are golden, and mostly in the clear.
If you are someone who interacts easily with other adults, the route to meeting young people is fairly easy. Community events and volunteering is a good thing to do anyway, and you meet families.
In fact, for those who are sociable and likable, the possibilities are endless, and they naturally find their way.
The issue most encountered is many with not so great social skills are also attracted to kids, who are not merely attractive, but also often very accepting and forgiving of that awkwardness.
The advice becomes a little more difficult here, because you seem strange to parents right from the start. I think there is something beneficial to being a math/science nerd and connecting with kids who are just like you but younger. Otherwise, "why the hell are you so strange or distant with us adults, yet so interested in hanging around our kid?"
There are not easy solutions to every dilemma.