Handling them is a very good idea, although some piggies never get used to being picked up! Treacle is 3 1/2 and she still runs away every time, but she's happy with cuddles!
I know when I got my new ladypig, I would get her out once on her own, and once with her friend Treacle, so she had that comfort of knowing someone else was there to cuddle with if she was nervous.
If you want to make it easier to pick them up, maybe try and pick them up in a towel, or a cozy cup/pigloo etc so you are not directly picking them up by hand. You can entice them in there with veggies. ((Does that make sense?)) It's been recommended by lots of other piggie owners on here, maybe it is worth trying if they always hide from you - pick up the hidey hole!