Playing mommy

Is it normal for 2 year olds to want to play "mommy" lol. But forreal is it? My daughter is 2 & loves to play mommy. I got pregnant with my princess at 16. I don't regret it all but I don't want that life for HER. I kinda want her interested in other things or am I just overreacting?

Also she has a new baby brother & she watches me feed, change, burp him, etc. So she won't feel left out, I allow her to do it. I even have a lil convo with her while I'm changing her brother & she changes her "baby." Anybody get where I'm coming from? 😭

UPDATE

Thanks ladies.I considered that I also could be overreacting lol