It's not as "experimental" as you imply. The research around mRNA vaccines has been ongoing for more than ten years. SARS-Cov2 was an opportunity to put all that research into practice.is this vaccine experimental?
If you read up on what mRNA vaccines do, especially in regard to SARS-Cov2, you'll see that the mechanisms used minimize influence over other body functions. Both the Pfizer and Moderna vaccines create antibodies that target the coronavirus spikes. This is important because those spikes are the reason SARS-Cov2 is as transmissible as it is and the reason it's so hard on people once infected. It also means that the vaccines are effective against other coronaviruses (including future mutations) with those same spikes.
And back on topic as well, my wife and I are looking forward to seeing all of our kids for Mother's Day. We will all have had two shots of either Moderna or Pfizer and completed the two week post injection wait. It's been a long time coming!