Have two kids. They have been my antidote so far. There are tough moments, additional responsibility and finance one needs to account for. But overall I feel grateful I have them.
Also I don't have a purpose based on parenting. I am just happy to be around them and try to be a good parent. It is nice to share things that I wish I had known from young age. Things that help you deal with life but are never taught.
Also I feel other relationships do not compensate the love we give and get from our children. It is very unique.
All being said I think it is good to be open minded about expectations. Children are unique and the relationship may flourish or take a sour turn depending on circumstances.
On whether one decides to have kids or not, I think there are no wrong decisions here.