I don't know where are you from, but you can check statistics about mortality by age in your country.
Speaking about side effects of vaccines, there are plenty studies monitoring it. If you believe in science as you wrote, read it carefuly:
- COVID-19 vaccines and adverse events of special interest: A multinational Global Vaccine Data Network (GVDN) cohort study of 99 million vaccinated individuals https://www.sciencedirect.com/science/article/pii/S0264410X2...
- Booster vaccination with SARS-CoV-2 mRNA vaccines and myocarditis in adolescents and young adults: a Nordic cohort study https://academic.oup.com/eurheartj/advance-article-abstract/...
- COVID-19 mRNA Vaccines: Lessons Learned from the Registrational Trials and Global Vaccination Campaign https://www.cureus.com/articles/203052-covid-19-mrna-vaccine...
- Platelet-neutrophil interaction in COVID-19 and vaccine-induced thrombotic thrombocytopenia https://www.frontiersin.org/articles/10.3389/fimmu.2023.1186...
- Cardiovascular Manifestation of the BNT162b2 mRNA COVID-19 Vaccine in Adolescents https://pubmed.ncbi.nlm.nih.gov/36006288/
- Surveillance of COVID-19 vaccine safety among elderly persons aged 65 years and older https://pubmed.ncbi.nlm.nih.gov/36496287/
- Apparent risks of postural orthostatic tachycardia syndrome diagnoses after COVID-19 vaccination and SARS-Cov-2 Infection https://www.nature.com/articles/s44161-022-00177-8
- To Evaluate the Safety, Tolerability, and Immunogenicity of BNT162b2 Against COVID-19 in Healthy Pregnant Women 18 Years of Age and Older https://clinicaltrials.gov/ct2/show/NCT04754594
- Long-term COVID-19 booster effectiveness by infection history and clinical vulnerability and immune imprinting: a retrospective population-based cohort study https://www.thelancet.com/journals/laninf/article/PIIS1473-3...
- A Comparison of Cases of Autoimmune Hepatitis After Vaccination Against COVID-19 https://journals.lww.com/acgcr/Fulltext/2023/01000/It_Can_t_...
- Massari M. et al: Postmarketing active surveillance of myokarditis and pericarditis following vaccination with COVID-19 mRNA vaccines in persons aged 12 to 39 years in Italy: A multi-database, self-controlled case series study https://pubmed.ncbi.nlm.nih.gov/34849657/
- Lai F.T. et al: Carditis After COVID-19 Vaccination With a Messenger RNA Vaccine and an Inactivated Virus Vaccine https://www.acpjournals.org/doi/full/10.7326/M21-3700?rfr_da...
- Oster M.E. et al: Myocarditis Cases Reported After mRNA-Based COVID-19 Vaccination in the US From December 2020 to August 2021 https://jamanetwork.com/journals/jama/fullarticle/2788346
- Bardosh K.et al: COVID-19 Vaccine Boosters for Young Adults: A Risk-Benefit Assessment and Five Ethical Arguments against Mandates at Universities https://papers.ssrn.com/sol3/papers.cfm?abstract_id=4206070
- Goddard K.et al: Risk of myokarditis and pericarditis following BT162b2 and mRNA-1273 COVID-19 vaccination, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9273527/
- Age and sex-specific risks of myokarditis and pericarditis following Covid-19 messenger RNA vaccines https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9233673/
- Epidemiology of Acute Myocarditis/Pericarditis in Hong Kong Adolescents Following Comirnaty Vaccination https://pubmed.ncbi.nlm.nih.gov/34849657/
- Persistent Cardiac Magnetic Resonance Imaging Finfings in a Cohort of Adolescents with Post-Coronavirus Disease 2019 mRNA Vaccine Myopericarditis https://www.jpeds.com/article/S0022-3476(22)00282-7/fulltext
- Vaccine-Associated Myo/Pericarditis in Adolescents: A Stratified Risk-Benefit Analysis https://onlinelibrary.wiley.com/doi/10.1111/eci.13759
- Risks of myocarditis, pericarditis, and cardiac arrhythmias associated with COVID-19 vaccination or SARS-CoV-2 infection https://www.nature.com/articles/s41591-021-01630-0#Aff1