I think that's a little judgemental of your mom.

I am sure they did like you. It would be strange if we only mixed with people our own age our whole lives. It would be kind of narrow.

One of my closest friends is 82, I am in my 40s, we just get along really well and have lots in common although we've had very different life experiences. I also have a young friend with young children (my family is grown now) who I really like and admire.

I think you should be friends with whoever you like!