自転車の練習を何歳から始めましたか？

<div class="apbct-real-user-wrapper"> <div class="apbct-real-user-author-name">amiami</div> <div class="apbct-real-user-badge" onmouseover=" let popup = document.getElementById('apbct_trp_comment_id_162961'); popup.style.display = 'inline-flex'; "> <div class="apbct-real-user-popup" id="apbct_trp_comment_id_162961"> <div class="apbct-real-user-title"> <p class="apbct-real-user-popup-header">The Real Person!</p> <p class="apbct-real-user-popup-text">Author <b>amiami</b> acts as a real person and passed all tests against spambots. Anti-Spam by CleanTalk.</p> </div> </div> </div> </div> さん

<div class="apbct-real-user-wrapper"> <div class="apbct-real-user-author-name">amiami</div> <div class="apbct-real-user-badge" onmouseover=" let popup = document.getElementById('apbct_trp_comment_id_162960'); popup.style.display = 'inline-flex'; "> <div class="apbct-real-user-popup" id="apbct_trp_comment_id_162960"> <div class="apbct-real-user-title"> <p class="apbct-real-user-popup-header">The Real Person!</p> <p class="apbct-real-user-popup-text">Author <b>amiami</b> acts as a real person and passed all tests against spambots. Anti-Spam by CleanTalk.</p> </div> </div> </div> </div> さん

<div class="apbct-real-user-wrapper"> <div class="apbct-real-user-author-name">めだか</div> <div class="apbct-real-user-badge" onmouseover=" let popup = document.getElementById('apbct_trp_comment_id_162959'); popup.style.display = 'inline-flex'; "> <div class="apbct-real-user-popup" id="apbct_trp_comment_id_162959"> <div class="apbct-real-user-title"> <p class="apbct-real-user-popup-header">The Real Person!</p> <p class="apbct-real-user-popup-text">Author <b>めだか</b> acts as a real person and passed all tests against spambots. Anti-Spam by CleanTalk.</p> </div> </div> </div> </div> さん

<div class="apbct-real-user-wrapper"> <div class="apbct-real-user-author-name">めだか</div> <div class="apbct-real-user-badge" onmouseover=" let popup = document.getElementById('apbct_trp_comment_id_162958'); popup.style.display = 'inline-flex'; "> <div class="apbct-real-user-popup" id="apbct_trp_comment_id_162958"> <div class="apbct-real-user-title"> <p class="apbct-real-user-popup-header">The Real Person!</p> <p class="apbct-real-user-popup-text">Author <b>めだか</b> acts as a real person and passed all tests against spambots. Anti-Spam by CleanTalk.</p> </div> </div> </div> </div> さん

<div class="apbct-real-user-wrapper"> <div class="apbct-real-user-author-name">amiami</div> <div class="apbct-real-user-badge" onmouseover=" let popup = document.getElementById('apbct_trp_comment_id_162957'); popup.style.display = 'inline-flex'; "> <div class="apbct-real-user-popup" id="apbct_trp_comment_id_162957"> <div class="apbct-real-user-title"> <p class="apbct-real-user-popup-header">The Real Person!</p> <p class="apbct-real-user-popup-text">Author <b>amiami</b> acts as a real person and passed all tests against spambots. Anti-Spam by CleanTalk.</p> </div> </div> </div> </div> さん