As with everyhing it just depends on you and your child, temperament, socialbility etc.
My dd (3.10mths)does something every day
Monday - she comes to work with me at 12.30 - I run mother and toddler groups. She has a tap and ballet class shortly afterwards.
Tuesday afternoon - she goes to nursery
On a Tuesday evening I go to a family drama group depending on how she feels she sometimes comes along.
WEdnesday - alternate wednesdays we go to playgroup or have a day at home. She has a dance class at 4pm
THursday - 9-11 she comes to work with me again and then we go to a cafe for lunch before nursery 1-4pm
Friday - Nursery 12.30- 4.30pm
Saturday morning - gymanstics in the morning and once a month she goes on a nature ramble with the junior RSPB group.
Sunday - morning sunday school
My dd loves structure, as a baby she was a four hour feed child with routine naps - a Gina Ford protoge! She likes to know what day of the week it is and what she will be doing.She is always asking me if she can do new activities - horseriding is on the list at the moment and she keeps asking if she can go back to tumble tots. She has a weekly calendar in her room with pictures so she knows what is coming. She loves to be busy and loves being with other children - she is an only child. I suppose I am lucky that she takes after me in the respect that she likes to be in the go. I know of other children who would hate such a busy structured life and I am sure that if my dd was one of these we just wouldn't do it.
I am aware that I am probably giving dd all that I wanted as a child, I always wanted to go dancing but my mum never took me. But as long as I am aware of these feelings and motivations and dd is happy with what she is doing I see no problem in it. I ask dd regularly if she would like to stop anything,and I never put pressure on her but she always insists she wants to go. Infact she used to ahve swimming lessons as well which we gave up as I couldn't keep up the pace and it took her weeks to forgive me.
She still has time for imaginative play, she has a playroom and will happily amuse her self while I do stuff, I also try and make time for less formal fun so we go to the library, the playroom is covered with her artistic creations, we walk on the beach with the dog and bake lots of nice goodies. When dp comes home he is straight into the playroom to play, tonight it was dinasours!
Dd isn't easy, That comes with having a bright child who is a little sponge soaking up all that the world has to offer. I am a great believer that we get the child we secretly want and have probably created , I wanted a bundle of mischief full of charactar, wit and humour and that this is ecactly what I have
Having said all of that if your neighbour doesn't go out often I wouldn't worry too much as WWW said all kids need is attention and love not endless outings and activities - she says as she goes off to put two dance costumes in the wash, polish some tap shoes and hunt out that leotard!