Anyone is allowed to come to Mass, or to simply visit the church outside of Mass. If you are worried about Communion, it is best to stay in the pew; some people go up and cross their arms to receive a blessing instead of the Eucharist, but some parishes may not do this.
You are definitely welcome at mass! Just a small addendum about going up for a blessing during communion. If you choose to seek this blessing, make sure you are in the line where the priest is distributing the Eucharist. There may also be other people distributing the Eucharist as well who are called extraordinary ministers—they cannot perform a blessing. Simply approach the priest, make a small bow, and cross your arms like this guy:
If you are at a mass with altar rails, the same thing applies except you will be kneeling at the rail. Hope this helps!
5 year old daughter: Mommy I don’t feel like going to Mass.
Me: Sometimes mommy doesn’t feel like cooking dinner.
5 year old daughter: You don’t?!
Me: I don’t, and sometimes I don’t feel like cleaning the toilet.
5 year old daughter: Ew it’s gross!
Me: Super gross! And sometimes I don’t feel like washing everyone’s dirty socks and underwear.
5 year old daughter: Mine aren’t dirty!
Me: They were before I washed them! Do you know why I do all these things that I don’t feel like doing?
5 year old daughter: Because you love us!
Me: Jesus knows how hard it is for us to do things for Him. When He wants us to go to Mass, or wants us not to sin, He isn’t asking us to do hard things. He is asking, “Do you love Me?”
5 year old daughter: Love is hard.
*For anyone who doesn’t feel like going to Mass today.*