I love watching animated movies with my grandkids.
Despicable Me, The Lorax, Shrek , the Grinch...
Etc etc..

As for myself, I am fascinated by insects of any kind, just as when I was a child, and as for feeling younger than your physical age, I believe it to be a healthy, prosperous and positive pursuit. Every time you hear someone 'banging' on about feeling old, that should be enough to confirm your supposed 'delusion'.

I have been collecting postage stamps since I was 11 years old. ?

I still love walking down the sidewalk in the fall dragging my feet and kicking piles of leaves. The sound brings back childhood memories for me. At 67 I’m just a big kid in some ways.

I never understood why we need the distinction. There is being selfish and immature, but what bearing should that have on actual activities?
We spend a childhood learning activities and coping skill only to give them up as we get older, seems crazy. We grow up and give up things that made us happy and still (potentially) could because we're afraid of looking foolish or immature. Who decided that going to a gym is more mature than going to a playground? Playgrounds are still far more fun. Who decided that playing tag was immature but softball was acceptable? Why must all adult activities center around competition or sex?

I know plenty of people who are very into stodgy activities that are considered adult, and they're some of the most immature and selfish people I know. I don't understand why we have to equate activities we participated in as kids, with the selfish or immature nature of childhood.
If it makes you happy, and it harms none, go for it.
I personally can't pass up a swing set.

I love Hello Kitty

Licking the cream out of a custard cream first.

I like playing with my grandson.

I still have some of my childhood stuffed animals, they are very sentimental to me.

I have a hello kitty touque haha. Might be the cutest cartoon character of all time.
Still enjoy the classic Looney Toons, and other classic cartoons haha.

Yes, same here. I resumed ownership of stuffed animals at the age of 46.

I still enjoy good grand strategy games such as Hearts of Iron, Arsenal of Democracy, or even Empires in Arms. And I still play with my dog like I am 7 years old.

I still like video games and anything related to comics and some Japanese Anime.

I also enjoy watching cartoons, especially if it's something from back in the 80's when I was growing up.

I like to read YA books because they're more fun than adult books. Why is so many adult novels never have any adventures or fun?

Want to come check out my Nerf guns?

There is nothing I have from my childhood that I do as an adult. I don't have a very well rounded life with hobbies and such

I still enjoy legos and playing games a lot. Also love collecting fun looking pillows...

I get paid to teach children how to play with toys. It's a lot harder than it sounds.

My sister just turned 70 and she has been obsessing about a toy (Wooly Lamb) that was in the family when we were kids, and judging by the number of soft toys sold, I doubt it could be classified as a peculiar perversion.

There's hello kitty and then there's:

Being childlike at times keeps you attuned to the wonder and amazement of life. I love watching really old cartoons and absurd movies like the Monte Python ones. Why not?

As long as your hobbies don't harm others why worry about it?
Follow your bliss.

I was collecting and making teddy bears. When I retired my daughter sent me coloring books and gel pens. I also pulled out the coloring books I had bought 15 or more years ago. I now have more pencils, pens, markers, soft pastels and oil pastels. There’s a lot of freebies online , too. Download and print. I guess this is what my daughter will be inheriting along with the teddy bears. Oh and let’s not forget the beany babies. Lol

A psychologist would hv a field day with you. However I say if it makes you happy keep at it!!!

Making girls giggle, with jokes or tickling them