Too young to be in love?

i hear this pretty often from people saying( not to me ) you're too young to know what love it and you don't knwo what love it. when are you not too young. how can someone not know what love is. it's a feel that EVERYONE is capable of feeling. i myself have been with my fiance since i was 16- that was 5 years ago and we now have a child together. i'm pretty sure i knew what love is. even before him i was very young but mistakenly had a very serious relationship that eventually ended and i did love him as well and i still admit that i think about him. so i guess my question is... when are you not too young to be in love?